How to find average rate of change from an equation


Asked by admin @ in Mathematics viewed by 266 People


Find the average rate of change for the given function from x = −1 to x = 2.

Graph of f of x equals negative three x plus 2

Answered by admin @




the \: average \: rate \: of \: change =  \frac{f(x2) - f(x1)}{x2 - x1}  \\  \frac{f(2) - f( - 1)}{ 2 -  - 1}  =  \\  \frac{ - 3(2) + 2 - ( - 3( - 1) + 2)}{3} =   \\  \frac{ - 6  + 2 - 3 - 2}{3}  =  \frac{ - 9}{3}  =  - 3

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