Question

Let f(x) = -2x - 7 and g(x) = -4x + 3. Find (f o g)(-5)

Answer 1

answer choices
A. 3
B. -9
C. -53
D. 23

Answer 2

(f o g)(-5)
is the same as f(g(-5))
so first plug in -5 to -4x+3

Answer 3

ok that is 23

Answer 4

is that the answer?

Answer 5

not yet :)
then plug in 23 into -2x-7

Answer 6

that is -53

Answer 7

correct :)
there you go ^_^

Answer 8

wow thank you , why couldn't my book just explain it like you did lol

Answer 9

hehehe :)
I'm glad I could help ^_^