ALGEBRA 1

Answer Lesson 4.8 Practice A questions 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, and 24.

Answer Lesson 4.8 Practice B questions 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 and 25.

SHOW YOUR WORK!

Answer ALL THE QUESTIONS USING A MAPPING DIAGRAM AND THE VERTICAL LINE TEST.

Evaluate the function when x = 3, x = 0, and x = -2. 7. f(x) = x B h(x) = x+7 9. 8(x) = x - 2 10. g(x) = 3x 11! g(x) = 4x - 1 3 h(x) = 1.2x 13: f(x) = 1.5x - 2 14: h(x) = -4x + 15. f(x) = x+ Graph the function. 16. f(x) = x - 7 17. 8(x) = 5x 18/ h(x) = 2x +. 1 19. g(x) = -4 201 f(x) = x Ex - 4 21. h(x)= -xx + 1 Decide whether the relation is a function. If it is a function, give the domain and the range. Mapping diagram 22. Input Output 23. Input Output 24. Input Output Year Attendance Temperature (F) Date - Area Code ZIP code 1996 215 72 June 8 907 99801 1997 297 74 June 9 916 94203 1998 412 58 June 10 916 94204 1999 690 70 June 11 850 32306 2000 1043 70" June 12 217 62706 112 Algebra 1 Copyright @ McDougal Littell Inc. Chapter 4 Resource Book All rights reserved.LESSON NAME 4.8 DATE Practice B For use with pages 256-262 Decide whether the graph represents y as a function of x. Explain your reasoning, Using the vertical line test 2. 3. 1 y - 3 - 1 3 -3 3 x -3. Decide whether the relation is a function. If it is a function, give the domain and the range. 4. Input Output 5. Input Output 6. Input Output 1 -6 CAN 2-Evaluate the function when x = 3, x = 0, and x = -2. 7: f(x) = 2x - 5 8. h(x) = 6x + 2 9. 8(x) = 2.4x XI 10. f(x) = 0.5x + 12 11 h(x) = x - 1 (2 f(x) =ex + 2 Graph the function. 13. f(x) = -4x + 3 14 8(x) = 2x - 5 15. h(x) = -3x - 1 16. g(x) = ax + 2 17. f(x) = -4x - 3 18. h(x) = -x +4 8'/ uosse] Find the slope of the graph of the linear function f. 19: f(2) = 4, f(0) = 6 20. f(1) = 3, f(3) = 7 21! f(-2) = 2, f(0) = -4 22. f(-1) = -4, f(-2) = 0 23. f(-3) = 7, f(2) = -3 24. f(-4) = -1, f(3) = 5 Football Attendance The table gives the attendance at a football champi- onship for five consecutive years. Is attendance a function of the number of years since 1993? Why, or why not? Years since 1993 1 2 3 4 5 Attendance 72,817 74,107 76,347 72,301 68,912 Copyright @ Mcdougal Littell Inc. Algebra 1 113 All rights reserved. Chapter 4 Resource BookLESSON NAME DATE 4.8 Practice A For use with pages 256-262 Decide whether the graph represents y as a function of x. Explain your reasoning, using the vertical line test 3. -3 -3. -1 -3 3 -3 3 Decide whether the relation is a function. If it is a function, give the domain and the range. 4. Input Output 5.) Input Output 6. Input Output O 4 A UN