Question

Please help I’m so bad at math I don’t understand

Answer 1

`-18`

Explanation:

f is a function of x. f depends on x. For every value of x, a certain value of f(x) is obtained.

This question requires us to determine the value of f(x) for x =
`-4`:

Substitute x =
`-4` into the provided function:

`f(-4) = 5(-4) +2`

=
`-20 + 2`

=
`-18`

Answer 2

f(-4) = -18

Explanation:

So we have f(x) and we have f(-4). The X is where the -4 is so that means x = -4.

Since we know that, we plug it into the equation. Everywhere we see an X

So instead of 5(x) + 2, it will be 5(-4)+2.

5 times -4 is -20, which makes it -20 + 2

-20 + 2 = -18. Giving us our answer