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OpenStudy (anonymous):
What is the average rate of change between x = 7 and x = 12 in the function below? x ; x < 5 f(x) = x + 2 ; 5 < x < 10 3x ;x > 10
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OpenStudy (anonymous):
ANSWER CHOICES A. 5 2/5 B. 5 C. 27 D. 2 7/15
OpenStudy (anonymous):
Seems that I was wrong, haha.
OpenStudy (anonymous):
@bmp thanks for the help anyway but do yu know how to do this by the answer choices given?
OpenStudy (anonymous):
A. 5 2/5
OpenStudy (anonymous):
Avg = Δ y/ Δ x
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OpenStudy (anonymous):
Δy = f ( 12) - f ( 7 ) / ( 12 - 7) = ( 36 - 9 ) / 5 = 27/ 5
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