Question

If f(x)=-7x+2 and g(x)=√x+3 what is (f °g)(-2)

Answer 1

-5

Explanation:

I just took it and got it right.

Answer 2

Answer:
`(f\°g)(-2)=-5`

Explanation:

The first step is substitute the function
`g(x)=√((x+3))` into the function
`f(x)=-7x+2`

`(f\°g)(x)=-7(√((x+3)))+2\\(f\°g)(x)=-7√((x+3))+2`

Now, you need to substitute x=-2 into
`(f\°g)(x)=-7√((x+3))+2` and simplify the function.

Finally you get that
`(f\°g)(-2)` is:

`(f\°g)(-2)=-7√((-2+3))+2\\(f\°g)(-2)=-7√(1)+2\\(f\°g)(-2)=-7(1)+2\\(f\°g)(-2)=-7+2\\(f\°g)(-2)=-5`