Y=f(x)=-3x find f(x) when x=3

need

f(3) = - 9

Step-by-step explanation:

to evaluate substitute x = 3 into f(x)

f(3) = - 3 × 3 = - 9

u dumb boi

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb