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Find the average rate of change of f(x) = -x² + 5x+2 from x=3 to x=6.
Simplify your answer as much as possible.

HELP ASAP PLEASE

Sagot :

sqdancefan

9514 1404 393

Answer:

  -4

Step-by-step explanation:

The points at the ends of the interval are ...

  (3, f(3)) = (3, 8)

  (6, f(6)) = (6, -4)

The slope is given by the slope formula:

  m = (y2 -y1)/(x2 -x1)

  m = (-4 -8)/(6 -3) = -12/3 = -4

The average rate of change is -4.

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