40. Find h(2x).

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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How do you do 40
28. (x) = 4x - 2 ifx -9,
29. h(x) =+ 5 if x = 2, 6, -4
%3D
30. g(x) = x + 3x - 9 ifx=
Graph each function.
31. {(x, (x)) | Mx) = x- 2; x = 0, 2, 4, 6}
33. {(x, y) |y = 2x + 3; – 3 <x< 0}
35. {(x, y)| 4x + 3y = 9}
32. {(x, y) | y = -+ 1; -3
34. {(x, Ax)) |Mx) = 14- x: x
%3D
vi
Use the function h(r) = 5r - 20 for exercises 36-40.
36. State the independent variable.
37. State the dependent variable.
38. If the domain is {-5, 0. 5, 10}, find the range.
39. If the range is {100, 200}, find the domain.
54
40. Find h(2x).
I C. Exercises
41. Graph {(x, y)|y = 4; 0 <x< 5} V {(x, y) y -r+4; x<0}. Is it a function?
42. Using the definition of a function, explain why the vertical line test works on the grap
%3D
43. Write a relation that would define the rectangular region 4 units wide and 6 units high
at the origin.
62
44. Given the relation x , solve for y and describe why this relation is not a function.
%3D
45. The total earnings of a student making $9/hr are a function of the number of hours work
tion rule, f(h), that describes the student's total earnings and evaluate the function for 25
63
56
Transcribed Image Text:28. (x) = 4x - 2 ifx -9, 29. h(x) =+ 5 if x = 2, 6, -4 %3D 30. g(x) = x + 3x - 9 ifx= Graph each function. 31. {(x, (x)) | Mx) = x- 2; x = 0, 2, 4, 6} 33. {(x, y) |y = 2x + 3; – 3 <x< 0} 35. {(x, y)| 4x + 3y = 9} 32. {(x, y) | y = -+ 1; -3 34. {(x, Ax)) |Mx) = 14- x: x %3D vi Use the function h(r) = 5r - 20 for exercises 36-40. 36. State the independent variable. 37. State the dependent variable. 38. If the domain is {-5, 0. 5, 10}, find the range. 39. If the range is {100, 200}, find the domain. 54 40. Find h(2x). I C. Exercises 41. Graph {(x, y)|y = 4; 0 <x< 5} V {(x, y) y -r+4; x<0}. Is it a function? 42. Using the definition of a function, explain why the vertical line test works on the grap %3D 43. Write a relation that would define the rectangular region 4 units wide and 6 units high at the origin. 62 44. Given the relation x , solve for y and describe why this relation is not a function. %3D 45. The total earnings of a student making $9/hr are a function of the number of hours work tion rule, f(h), that describes the student's total earnings and evaluate the function for 25 63 56
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