Which function has an inverse that is a function?
b(x) = x + 3
d(x) = -9
m(x) = -7x
P(x) = x

b(x)=x+3

Step-by-step explanation:

The inverse of b(x)=x+3 is x=y+3 or f(x)=x-3 which is a function

.

step-by-step explanation:

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.