Answer:
x+9
Step-by-step explanation:
f(x) = x, going up 9
that is y=x, going up 9
if you wnat to go up, subtract 9 from y
y -9 = x
y=x+9
convert back to f(x)
f(x) = x+9
Show a picture so I can help
you add your number and then you subtract it so all the other steps are are going to be the exact same
its A
please do not give this irrivilant question
4(2x+5) or 8x+20