Question

Check my answer please? Function help?

Answer 1

I got D

Answer 2

$$ \Large {
(g \circ f )(x) = g(f(x)) = g(7x+1) = (7x+1)^2


} $$

Answer 3

can you finish it from here?

Answer 4

@perl Still kind of lost, think I made it this far but wasn't sure what to do when it came to squaring

Answer 5

$$ \Large {
(g \circ f )(x) \\= g(f(x))\\ = g(7x+1) \\= (7x+1)^2
\\ = (7x+1)(7x+1)

} $$

Answer 6

@perl So my answer is right?