## KJ4UTS one year ago Determine the average rate of change of the function f(x)=-2x^2+5 over the interval from x=1 to x=4.

1. KJ4UTS

Do I plug this in like this: -2(1)^2+5=3 -2(4)^2+5=-27

2. KJ4UTS

My choices are: -10 10 -8 8 None of the others

3. Nnesha

average rate of change = slope

4. Nnesha

you pluggd 1 and 4 to find y values now use slope formula to find average rate of change $\huge\rm \frac{ y_2 -y_1 }{ x_2 -x_1 }$

5. KJ4UTS

-10

6. Nnesha

:=) looks good