Question

question attached in comments

Answer 1

I think that to evaluate s(r(-4)) you need to first find the answer to the function "r" when r(x) = -2x + 1. Therefore you need to substitute when "x" is in -2x + 1 by putting -4 \(\rightarrow r(-4) = -2(-4) + 1\).

Answer 2

Find the answer to -2(-4) + 1.

Answer 3

oh okay, that makes sense. so, i'd do r(x)=-2(-4) + 1, which equals x = -8, right?

Answer 4

-2(-4) + 1 does not equal to -8

Answer 5

oh wait, i didn't see the 2 was negative. it'd be 9.

Answer 6

good. so we know r(-4) = 9. since r(x) is inputted within s(x), where x is in this case, we will replace it with 9. so we will have s(9).
\(s(9) = -4(9) - 5\) evaluate that

Answer 7

i got -41

Answer 8

good job. so i think that the answer could be -41.

Answer 9

it is! thanks :)

Answer 10

you're welcome :)