What is the closest approximate average rate of change for Edna's profits from the 18th month to the 21st month?
that is the approximate slope of the graph for t=18 to t=21
approximately 45 / 3 per month
Three dollars per month Nine dollars per month 13.75 dollars per month 41.25 dollars per month So, 13.75?
find the (x,y) points on the parabola at x=18 and x=21 then find change in y divided by change in x change is x will be 21-18 = 3
So, it's 3?
no. what is the y value at x= 18 ?
the line is pretty thick so its not easy to read it accurately
it looks like it is on the x-axis, so y=0 at x=18 what is the y value at x= 21 ?
so the change in y is 41.25 - 0 = 41.25 now find the slope change in y divided by change in x 41.25/3 = ?
LOL, JK, 13.75
which is roughly what welsh explained up above the answer depends on how accurately you can read the graph.
Well, welsh answered first, so, I'm gonna have to give the medal to him, sorry.