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The graph shows the quadratic function f(x) .

What is the average rate of change for the quadratic function from x = 4 to x = 8?

The graph shows the quadratic function f(x) . What is the average rate of change for-example-1
User FreshWoWer
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the average rate of change formula is A(x)= f(x) - f(a)
x - a
User Ben Zifkin
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Answer:

-2


Explanation:

The average rate of change would be change in y divided by change in x

Value of the function at x = 4 is 12

Value of the function at x = 8 is 4

Hence,

  • change in y is
    4-12=-8
  • change in x is
    8-4=4

Average rate of change from x = 4 to x = 8 is
(-8)/(4)=-2

User Primitivist
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