Respuesta :

jasdul1375

Answer:

Δy = 15/6 = 5/2 = 2.5

Step-by-step explanation:

rate of change is slope so change in f(x) over shange in x

5/6 = Δy/7-4

5/6 = Δy/3

5/6*3/1 = Δy

Δy = 15/6 = 5/2 = 2.5