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Which function, b or c, is the inverse function for function a?
A- neither function
B- the function b because the graphs of a and b are symmetrical about the line y = x
C- the function c because the graphs of a and c are symmetrical about the y-axis
D- the function c because the graphs of a and c are symmetrical about the line y=x

Which function b or c is the inverse function for function a A neither function B the function b because the graphs of a and b are symmetrical about the line y class=

Respuesta :

Function Algebra Unit test

1. (F•g)(x)=3x-9/x+4

2. F^-1 (x) = -3x-4/x-7

3. ( -5 , 0) u ( 0 ,~)

4. D: (-~,2) u (2,~) R: (-~,0) u (0,~)

5. {y|0 _< y< 8}

6. Restricted domain : x _> -4 ;f^-1 (x) = -4+ sqrt x-3

7. The function C because the graphs of A and C are line symmetrical about the Y=X

8. (-~,-3) u (-3,-5/2) u (-5/2,~)

9. ( 4 points )

10. (g • f) (x)= x+3/sqrt x+2

11. (f•g) (x) = x+6 ; [ -2,~)

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