Respuesta :

Answer:

Step-by-step explanation:

plug in 4 for x then simplify

= 2(4) + 1

= 8 + 1

= 9

hope this helps <3

Answer: f (4) = 9

Step-by-step explanation:

f (x) = 2x + 1

f (4) = 2 (4) + 1

f (4) = 8 + 1

f (4) = 9