Question

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

Answer 1

\[\huge f(x) =2x-4\\\huge g(x)= x^2 -4x\\find~g(-3)\]
My question is: why do they give you f(x)?

Answer 2

idk

Answer 3

is there any question else?

Answer 4

If f(x) = 2x − 4 and g(x) = x2 − 4x, find f(0).

Answer 5

i think when it says f(0), the 0 goes for x

Answer 6

These work just like the other one Hero just showed you. Put what is inside the ( ) in place of x. Choose which function you put it on based on the letter next to ( ), so g(-3) would mean use function g and relace x with -3 and f(0) would mean sue function f and replace x with 0.

Answer 7

ok