find the average rate of change for f(x)=-2x^2+1;from -2 to 0

Question

from -1 to 1

from  -1 to 2

from -2 to 0

Answer 1

Just plug in your range of values for x

 

-2(-2²)+1= -7

 

-2(0²⁾+1= 1

 

Your rise is 8 (-7 to 1), and your run is 2 (-2 to 0), so the average rate of change is 8/2 or 4.