Select the correct answer. Consider these functions:
f(x)=-2x – 1
g(x) = -1/2x+1/2
Which statements, if any, are true about these functions?
1. The function A g(x)) = x for all real x.
II. The function glAx)) = x for all real x.
III. Functions fand g are inverse functions.
A.
Tonly
B.
II only
C.
I, II, and III
D.
None of the statements are true.

D

Step-by-step explanation:

Given that

f(x)=-2x – 1

g(x) = -1/2x+1/2

I The function f( g(x)) = x for all real x.

-2(-1/2X + 1/2) - 1

X - 1 - 1

X - 2

II. The function glAx)) = x for all real x.

- 1/2( -2X - 1 ) + 1/2

X + 1/2 + 1/2

X + 1

III. Functions fand g are inverse functions

Inverse of f(x)

Y = -2x - 1

X = - 2Y - 1

- 2Y = X + 1

Y = - 1/2X - 1/2

Therefore, none of the above answers is correct.

The correct answer is therefore D

in 4 days he will run   12/14

step-by-step explanation: