Question

If f(x)=2x−2, what is 2[f(3)]?

Answer 1

Answer: 8

Explanation:

First solve for f(3), by plugging in 3 for x.

2x - 2

2(3) - 2

6 - 2

4.

Then, simply multiply this number by 2.

f(3) * 2

4 * 2

8

Hope it helps and let me know if you want me to elaborate :)