Question

let f(x)=x^2-100.the average rate of change from x=-2 to x=2 equals
A.-100
B.100
C.0
D.400

Answer 1

@Venny can u help me

Answer 2

what is the slope of the line between the 2 points?

Answer 3

it also would be helpful to know that f(x) is an even function so that f(-2) = f(2)

Answer 4

ok can u hlp me solve it

Answer 5

@amistre64

Answer 6

Average rate of change over \([a,b]\) = \(\dfrac{f(b)-f(a)}{b-a}\)

Answer 7

ok