Question

if the y intercept of y=f(x) is 7, what is the y intercept of f(x) -3

Answer 1

to get y intercept , you plug in x=0

so, " y intercept of y=f(x) is 7 "
gives you f(0) =7

similarly, plug in x=0 in
f(x) -3

(now that you know f(0), you will be able to find it)