Question

given f(x)=x^2-2x, find f(4)

Answer 1

f(4) means x=4
so replace x with 4

Answer 2

plug x = 4 in the equation

Answer 3

f(4) ----> replace in f(x) the x with 4, so it is f(4)=4^2-2*4=16-8=8

Answer 4

you went 2 steps ahead.

Answer 5

she said '' find f(4) '' not how can i find f(4)

Answer 6

*copy paste*
that's exact question from her notes
but that doesn't mean we have to solve for them.