Respuesta :

Answer:

9

Step-by-step explanation:

f(x)=2x+1

f(4)=2 x 4+1

   = 8+1

  = 9

Answer:

Wherever we see an  x , we just input  4  to find  f ( 4 ) :  f ( 4 ) = 2 ( 4 ) − 1 = 8 − 1 = 7  

Hope this helps