Question

The graph of a function g is shown below.

Find its inverse.
A.)g-1( x) =2/5 x + 5
B.)g-1( x) =5/2 x + 2
C.)g-1( x) = - 2/5x + 2
D.)g-1( x) =5/2 x + 5

Answer 1

The answer for this is D because

Answer 2

D

Explanation:

the slope =

`(0 - ( - 2))/(5 - 0) = (2)/(5)`

y =mx+b

m = slope

when x = 0 , y = -2

y =(2x/5)-2

x =(2y/5)-2

x+2 = (2y/5)

5x+10 = 2y

y =(5x/2)+5 = g-1(x)