Intermediate Algebra – Student Workbook – Second Edition 2013

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$Lesson 2a – Assessment - Scottsdale Community College - Math Blog$

Lesson 1b – Linear Equations Practice Problems 7. A line passes through the points (3,6) and (5,-4). a) Determine the equation for the line in the form y = mx + b. Show complete work in this space. b) What is the vertical (y) intercept for this equation? Show work or explain your result. c) What is the horizontal (x) intercept for this equation? Show complete work to find this. 8. Find the equation of the line for the following problem. Graph the results. a) Jolado decided to go on a diet. On the day he started, he weighed 200 pounds. For the next 8 weeks, he consistently lost 2 pounds a week. At the end of 8 weeks, he decided to make a graph showing his progress. He determined that the y-intercept for his graph would be (0,200) and the slope would be -2 (2 pounds a week). Scottsdale Community College Page 46 Intermediate Algebra
Lesson 1b – Linear Equations Practice Problems b) Jolado needed 200 pounds of roofing nails for his project. He poured one cup filled with nails into a bucket and found that it weighed 2.3 pounds. He then poured 4 more cups of nails into the bucket and found that it weighed 9.5 pounds. He figured if he used the points (1,2.3) and (5,9.5) he could figure out a formula and calculate how many cups he would need. c) Challenge question. The formula you found above doesn’t go through the origin. Shouldn’t 0 cups of nails weigh 0 pounds? Can you figure out why 0 cups of nails actually weighs MORE than 0 pounds in Jalado’s equation? Scottsdale Community College Page 47 Intermediate Algebra
Page 1 and 2: Scottsdale Community College Interm
Page 3 and 4: Table of Contents Lesson 1a - Intro
Page 5 and 6: Lesson 1a - Introduction to Functio
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Appendix A: You Try Answers Lesson
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Intermediate Algebra – Student Workbook – Second Edition 2013

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