Respuesta :

Apply the formula of Average rate of change:

[tex]\frac{(f(b)-f(a)}{b-a}[/tex]

b=7

a=-3

f(b) = F(7) = 5(7)-7 = 35-7 = 28

f(a) = f(-3) = 5(-3) -7 = -15-7 = -22

Replacing:

[tex]\frac{28-(-22)}{7-(-3)}=\frac{28+22}{7+3}=\frac{50}{10}\text{ = 5}[/tex]

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