Question

If f (z)= -7(z+4) - 7 find f (3)

Answer 1

Let's look at the equation first. We need to find what the output is when z=3.

-7(3+4); now, all we need to do is follow the order of operations in order to get the correct answer.

-7(3+4)→ -7×7 → -49-7→-56

So f(3)=-56