Question

if f(x) = 5x-20 find f(y+2)​

Answer 1

Answer:

f(y + 2) = 5y - 10

Step-by-step explanation:

To evaluate f(y + 2), substitute x = y + 2 into f(x), that is

f(y + 2) = 5(y + 2) - 20

           = 5y + 10 - 20

           = 5y - 10