Mathematics - PearsonAccess.com

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Objective 3The domestic production of crude oil in the United States from1985 to 2002 can be approximated by the following graph.yDomestic Production ofCrude Oil, 1985–200211Millions ofBarrelsper Day109802 4 6 8 10 12 14 16 18 20Years Since 1985xWhat do the slope and y-intercept of this graph tell you about theaverage U.S. production of crude oil during this time period?● The y-intercept of the line is at 10.6. This represents 10.6million barrels of oil being produced per day. Since the x-axisrepresents “Years Since 1985,” the y-intercept tells you that thenumber of barrels of oil being produced per day in 1985 was10.6 million barrels.● The slope of the graph is negative because the line falls to theright. This means that the United States has been producing lesscrude oil each year, and the decline in oil production has beenat a fairly steady rate.By estimating the coordinates of any two points on the graph,you can approximate this rate of decline in oil production.The following two points appear to be on the graph: (0, 10.6)and (17, 8.2).Slope m y 2x2 y1 8.2 x 1 17 10.6 0 2.41 0.147The slope of 0.14 represents a decline in average oil productionof 0.14 million barrels per day per year (or approximately140,000 barrels per day fewer each year).91
Objective 3Try ItThe graph below describes the number of grams of potassium iodidethat will dissolve in 100 grams of water in terms of the temperatureof the water in degrees Celsius.ySolubility ofPotassium Iodide240220200180Solubility(grams/100 gramsof water)16014012010080604020010 20 30 40 50 60 70 80 90 100Temperature (°C)xWhat does the slope of this graph tell you about the solubility ofpotassium iodide?The slope of the graph is ________________. It rises to the right.This means that as the temperature of the water increases, the numberof grams of potassium iodide that will dissolve in 100 grams of water________________.The slope of the graph is positive. It rises to the right. This means that asthe temperature of the water increases, the number of grams of potassiumiodide that will dissolve in 100 grams of water increases.92
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Revised 2007MathematicsA Student an
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Cover photo credits: Left © Royalt
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ContentsMathematicsIntroduction . .
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What Are the Helpful Features of Th
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Texas Assessmentof Knowledge and Sk
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Objective 1The student will describ
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Objective 1Do the ordered pairs gra
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Objective 1How Can You Represent a
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Objective 1Any equation in the form
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Objective 1A variety of methods of
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Objective 1Does the graph below rep
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Objective 1●Check at least two po
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Objective 1Find two points that sat
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Objective 1A physics class is doing
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Objective 1Which of the following s
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Objective 1Question 1The basketball
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Objective 1Question 7Which graph be
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Objective 1Question 9The table belo
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Objective 2The student will demonst
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Objective 2The simplest quadratic f
Page 41 and 42: Objective 2Try ItWhat are the domai
Page 43 and 44: Objective 2An open circle on agraph
Page 45 and 46: Objective 2Try ItA rectangular cour
Page 47 and 48: Objective 2Try ItThe graph below de
Page 50 and 51: Objective 2A trucking company keeps
Page 52 and 53: Objective 2How Do You Use Symbols t
Page 54 and 55: Objective 2Verify that each of the
Page 56 and 57: Objective 2Students in a math class
Page 58 and 59: Objective 2Simplify the expression
Page 60 and 61: Objective 2How Do You Solve Algebra
Page 62 and 63: Objective 2The length of a rectangl
Page 64 and 65: Objective 2Question 12Which functio
Page 66 and 67: Objective 2Question 16The table sho
Page 68 and 69: Objective 3The student will demonst
Page 70 and 71: Objective 3What Is Slope?The slope
Page 72 and 73: Objective 3The set of ordered pairs
Page 74 and 75: Objective 3What are the slope and y
Page 76 and 77: Objective 3What Are the Effects on
Page 78 and 79: Change in y-Intercept, bObjective 3
Page 80 and 81: Objective 3Try ItIf the slope of th
Page 82 and 83: Objective 3Try ItWrite the equation
Page 88 and 89: Objective 3Here are two ways to fin
Page 90 and 91: Objective 3How Do You Interpret the
Page 94 and 95: Objective 3How Do You Predict the E
Page 96 and 97: Objective 3In a science lab Kim fou
Page 98 and 99: Objective 3Question 25The graph bel
Page 100 and 101: Objective 4The student will formula
Page 102 and 103: Objective 4● Solve the inequality
Page 104 and 105: Objective 4Try ItSix friends decide
Page 106 and 107: Objective 4Try ItA rectangle has a
Page 108 and 109: Objective 4Solve this system of equ
Page 110 and 111: Objective 4The elimination method i
Page 112 and 113: Objective 4Try ItDescribe the solut
Page 114 and 115: Objective 4Question 34The Seashell
Page 116 and 117: Objective 4Question 40Which is the
Page 118 and 119: Objective 5The graph of the quadrat
Page 120 and 121: Objective 5What Happens to the Grap
Page 122 and 123: Objective 5If the coefficient of x
Page 124 and 125: Objective 5What Happens to the Grap
Page 126 and 127: Objective 5For what amount should t
Page 128 and 129: Objective 5What are the solutions t
Page 130 and 131: Objective 5How Can You Solve a Quad
Page 132 and 133: Objective 5How Can You Solve a Quad
Page 134 and 135: Objective 5Try ItFind the approxima
Page 136 and 137: Objective 5●●When raising a ter
Page 138 and 139: Objective 5Try ItA rectangular pris
Page 140 and 141: Objective 5Question 46A bakery dete
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Objective 6The student will demonst
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Objective 6In the diagram below, FR
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Objective 6Point O is the center of
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Objective 6Continue to follow this
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Objective 6Make a table to show the
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Objective 6Sometimes we can combine
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Objective 6Find the length of side
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Objective 6Consuelo is on a boat 3
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Objective 6How Do You Use Transform
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Objective 6The graph of ABC is show
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Objective 6If point P (6, 1) is ref
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Objective 6Try ItThe graph below sh
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Objective 6Question 57Look at the s
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Objective 6Question 63Which set of
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Objective 7What 3-dimensional figur
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Objective 7Perspective views of a f
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Objective 7A coordinate grid is use
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Objective 7T5yRS432UV1-5 -4 -3 -2 -
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Objective 7A median of a triangle i
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Objective 7Parallelogram PTRS is sh
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Objective 7How Do You Find the Leng
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The x-coordinates of the endpoints
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Objective 7You should also be famil
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Objective 7Question 67Three views o
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Objective 7Question 71Which equatio
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Objective 8●Find the area of the
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Objective 8Try ItHenry is building
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Objective 8How Do You Find the Leng
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Objective 8Substitute the known val
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Objective 8A πr 2A π(3) 2A 9π
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Objective 8Yolanda’s television s
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Objective 8Try ItWhat is the perime
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Objective 8What is the minimum area
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Objective 8What is the lateral surf
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Objective 8How many cubic centimete
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Objective 8Flask’s volume Volume
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Objective 8DilationsA dilation is a
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Objective 8y13121110A9876DD54321-13
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Objective 8The lengths of the sides
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Objective 8The actual width of the
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Objective 8How Is the Surface Area
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Objective 8Question 76D 127 yd 2Que
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Objective 8Question 80Question 79D
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Objective 8Question 85A spherical b
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Objective 9●Write a proportion, a
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edObjective 9What Is Probability?Pr
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Objective 9A jar contains 9 black m
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Objective 9For the second draw, we
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Objective 9A spinner is divided int
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Objective 9Try ItA gardening store
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Objective 9The table shows the atte
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Objective 9Mean:Find the mean of Ry
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Objective 9When people go to a doct
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Objective 9Next year new elective c
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Objective 9The lower quartile can b
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Objective 9The greatest percent inc
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Objective 9Question 91Amelia survey
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Objective 9Question 94The circle gr
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Objective 9Question 97A high school
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Objective 10●Write two equations
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Objective 10Let h represent the num
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Objective 10●The distance around
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Objective 10How Do You Communicate
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Objective 10If the translated funct
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Objective 10How Do You Use Logical
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Objective 10Try ItWrite the equatio
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Objective 10The solution to a probl
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Objective 10Question 102Which equat
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Objective 10Question 105Three trian
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Objective 10Question 107A triangle
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Mathematics Answer KeyDCorrect. Use
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Mathematics Answer KeyThe cost of t
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Mathematics Answer KeySubstitute c
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Mathematics Answer KeyQuestion 39 (
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Mathematics Answer KeySet each fact
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Mathematics Answer KeyQuestion 63 (
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Mathematics Answer KeySubstitute m
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Mathematics Answer KeyThe height of
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Mathematics Answer Key5quarter is .
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Mathematics Answer KeyInvestmentof
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Texas Assessmentof Knowledge and Sk
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