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Name Class Date Performance Tasks (continued) Chapter 5 TASK 3 You and your friend are having trouble using the different methods for finding the equation of a line. With the help of the graph at the right, provide a detailed step-by-step procedure that demonstrates how each method works. a. Using slope and y-intercept 4 y 2 x 4 2 O 2 4 2 4 b. Using slope and a point c. Using two points d. Using x- and y-intercepts e. Write the equation of the line at right in the form Ax 1 By 5 C. f. Think of a real-world situation that can be modeled using the equation you wrote in part (e). 34 Prentice Hall Algebra 1 • Teaching Resources Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. 90 For review purposes only. Not for sale or resale.
Name Class Date Extra Practice Chapter 5 Lesson 5-1 Find the slope of each line. 1. 2. 3. Find the rate of change for each situation. 4. growing from 1.4 m to 1.6 m in one year 5. bicycling 3 mi in 15 min and 7 mi in 55 min 6. growing 22.4 mm in 14 s 7. reading 8 pages in 9 min and 22 pages in 30 min 8. The cost of four movie tickets is $30 and the cost of seven tickets is $52.50. 9. Five seconds after jumping out of the plane, a sky diver is 10,000 ft above the ground. After 30 seconds, the sky diver is 3750 ft above the ground. 10.Find the slope of the line that includes the points (1, 4) and (–3, –2). Lesson 5-2 Tell whether each equation is a direct variation. If it is, find the constant of variation. y 11. y = 2x – 2 12. 4y = x 13. 3 x = Graph the direct variation that includes the given point. Write the equation of the line. 14. (5, 4) 15. (7, 7) 16. (–3, –10)17. (4, –8) For review purposes only. Not for sale or resale. Prentice Hall Algebra 1 • Extra Practice Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. 17 35
Page 1 and 2: Teacher Resource Sampler Algebra 1
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