Ellen makes and sells bookmarks. she graphs the number of bookmarks sold compared to the total money earned. what is the rate of change for the function graphed to the left?

Given coordinates on the graph is (4,0), (8,10), (12,20).

We need to find the rate of change for the function graphed.

Actually rate of change is the second name of slope.

So, we need to find the slope between given coordinates.

We know slope formula

Let us choose first two coordinates (4,0), (8,10).

(x1,y1) = (4,0) and (x2,y2) = (8,10).

Plugging values of x1,x2,y1 and y2 in slope formula, we get

Slope=

Therefore, rate of change is 5/2 or $2.5 earned per bookmark sold.

yo answer should be 6 if im not mistaken

step-by-step explanation:

the correct answer would be d because the slope is -2/2=1 and the y intercept is at 2 so that is the correction equation