Question

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

Answer 1

Do I plug this in like this:

-2(1)^2+5=3
-2(4)^2+5=-27

Answer 2

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

Answer 3

average rate of change = slope

Answer 4

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

Answer 5

-10

Answer 6

:=) looks good