Respuesta :

Answer:

9

Step-by-step explanation:

given

f(x) = 7x - 19

f(4) = 7 * 4 - 19

= 28 - 19

= 9

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

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

Solution 7x4 =28 -19

f(4)=9