Question

If f(x) = 7x-19
then f(4)=?

Answer 1

f(4) means you put in 4 for the x.

So f(4)=7(4)-19

Solution 7x4 =28 -19

f(4)=9

Answer 2

9

Explanation:

given

f(x) = 7x - 19

f(4) = 7 * 4 - 19

= 28 - 19

= 9