Question

If s(x) = 2 – x^2 and t(x) = 3x, which value is equivalent to (s composition t)(-7)?
a. –439
b. –141
c. 153
d. 443

Answer 1

I'd assume you'd have to plug t into s(x) like so:

\(\Large S(t(7)) =2-(3x)^2 \)

Answer 2

ok

Answer 3

Simplify it and plug in 7,

\(\Large S(t(7)) =2-9(7)^2 \)

Think you can finish it?

Answer 4

Yes thank you.