Question

if f(x)=2x-4, find f(q +1)
A) 2q + 4
B) 2q + 2
C) 2q - 6
D) 2q - 2

Answer 1

Answer:B Just thing of g and f as numbers,

g - f =

then substitute in what the problem tells you g and f are,

[(x^2) - 2x - 4] - [4x + 1] distribute the negative,

(x^2) - 2x -4 - 4x -1 [then collect like terms] x^2 - 6x -5

so (g - f) (x) = x^2 - 6x -5

Answer 2

oh ok