Question

Find g º f
if f(x) = 2x - 1 and g(x) = x + 2.

Answer 1

g°f means g(f(x))
Replace every x in g(x) with f(x), then simplify.

Answer 2

so itd be 2x-1=x+2

Answer 3

No.
f(x) = 2x-1
g(x) = x + 2
g(f(x)) = f(x) + 2 = (2x-1) + 2

Answer 4

ohh alright, thanks :D!!!