Respuesta :

mathstudent55

Answer:

-1/2

Step-by-step explanation:

In a function, the rate of change from x = a to x = b is

rate of change = [f(b) - f(a)]/(b - a)

Here we have

a = 1, f(a) = 4

b = 5, f(b) = 2

rate of change = (2 - 4)/(5 - 1)

rate of change = -2/4 = -1/2

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