Question

. r(x)=2x+1 s(x)=x^2+2 Find the value of s(r(1)).

Answer 1

r(x) = 2x + 1
s(x) = x^2 + 2
s(r(x)) = (r(x))^2 + 2 = (2x + 1)^2 + 2

Answer 2

Now substitute x = 1 into s(r(x))

Answer 3

(3(3(1))?

Answer 4

(2(1) + 1)^2 + 2 = 3^2 + 2 = 9 + 2 = 11