Question

Given the functions k(x) = 5x − 8 and p(x) = x − 4, solve k[p(x)] and select the correct answer below.

k[p(x)] = 5x − 12
k[p(x)] = 5x − 28
k[p(x)] = 5x2 − 12
k[p(x)] = 5x2 − 28

Answer 1

if f(x)= 2x^2 and g(x)=3x
now
f[g(x)] = f[3x]
= 2(3x)^2
=18 x^2 is your answer now solve your question same like this one

Answer 2

so would the answer be D?

Answer 3

no

Answer 4

k[p(x)]=5(x-4)-8

Answer 5

multiply out the bracket and simplify ...

Answer 6

what do we get @kkailyn

Answer 7

no B is correct answer

Answer 8

B?

Answer 9

yes B is correct

Answer 10

@LynFran , thank you so much, the formula you showed just taught me how to solve this type of problem correctly