Question

Use the following function rule to find f(7).
f(x) = 10 + 12x
f(7) =

Answer 1

The answer to the equation is F(7) = 94.

Explanation:

What is substitution?

Substitution is the act of replacing a value with a number. Ex: x + 1 = 5. 4 + 1 = 5. The number that substituted in for x was 4.

What do we know?

We know the equation is
`F(x)=10+12x`.

We also know that we are trying to find
`F(7).`

So, using this information, we can solve the problem.

We need to substitute 7 in for every x we see.

`F(7)=10+12(7)`

Now, we solve the equation.

`F(7)=10+12(7)`

`F(7)=10+84`

`F(7)=94`.

So, the answer is F(7) = 94