Respuesta :

AlexVavvas

Answer:

-6

Step-by-step explanation:

∆f/∆x = ( f(5) - f(1) ) / ( 5 - 1 ) =

= ( -8 - 16 ) / 4 = -24 /4 = -6

The delta "∆" symbol means the change of something.

∆X = Xfinal - Xinitial