Question

Please help! I will mark as brainliest IF answer is right. <3

Answer 1

Answer:

For f(5x) we replace x by 5x in function ...

f(5x) = -9(5x) +7

f(5x) = -45x +7

Step-by-step explanation:

mark me as brainliest ❤️

Answer 2

Answer:

f(x) = -9x+7

f(5x)= -9(5x)+7

5x=-45x+7

-7=-45x/5x

-7=-9x

-7/-9 =x

x=0.7