Question

Given that f(x)=4x^2, and g(x)= 3-(x/2), what is the value of f(g(4))?

Answer 1

you need to find \(g(4)\) first
did you do that?

Answer 2

i haven't been taught that yet.

Answer 3

\[g(x)=3-\frac{x}{2}\] to find \(g(4)\) replace \(x\) by \(4\) and compute
\[g(4)=3-\frac{4}{2}\] what do you get?

Answer 4

1

Answer 5

ok good
now you need \(f(g(4))=f(1)\)

Answer 6

thanx. ik it sounds like a dumb question. :(

Answer 7

\(f(x)=4x^2\)
\(f(1)=?\)

Answer 8

16

Answer 9

oh careful here! exponents first, multiplication second

Answer 10

\[f(1)=4\times 1^2=4\times 1=4\] not \(16\)

Answer 11

thanx. ik it sounds like a dumb question. :(