If f(x) = 2x − 4 and g(x) = x2 − 4x, find g(-3)

Question

anonymous · Answer

Are you supposed to find g(f(-3))? or just g(-3)?
Because if you are trying to find g(-3) then having f(x) would not help you.

What you would do for g(-3) would just be plug -3 into all the x values in g(x) = x2 − 4x and then simplify.

imstuck · Answer

Replace the x in the g function with -3 and you're good to go!

triciaal · Answer

Are you sure the question is correct? what is the purpose of f(x)
to solve as written for g(-3) in g(x) replace x with -3

anonymous · Answer

would -2 be the answer?

geerky42 · Answer

No.

anonymous · Answer

I am assuming your equation is squared and not multiplied by 2, so you just plug in -3 like so: and then do the math and get your answer. but no not -2
g(-3) = (-3)^2 - 4 * (-3)