The relationship between the selling price of a sleeping bag, s dollars, and the revenue at that selling price, r(s) dollars, is represented by the function r(s)=-10s^2 + 1500s. Evaluate, interpret, and compare r(29.95), r(60.00), r(75.00), r(90.00), and r(130.00).
This question is much different from the other questions in my functions unit so I am not sure where to even begin with this. If I fill in what I know I still am not sure what to do from there:
29.95=-10s^2 + 1500s
Would I solve it using the quadratic formula? It isn't used at all in this unit but seems the most likely to me. If so, would it be like this:
0=-10s^2 + 1500s - 29.95
or would I want to switch the negatives so that (a) is not negative like this:
10s^2 - 1500s + 29.95=0
(Or can I even do that? )
Thanks for any help!
This question is much different from the other questions in my functions unit so I am not sure where to even begin with this. If I fill in what I know I still am not sure what to do from there:
29.95=-10s^2 + 1500s
Would I solve it using the quadratic formula? It isn't used at all in this unit but seems the most likely to me. If so, would it be like this:
0=-10s^2 + 1500s - 29.95
or would I want to switch the negatives so that (a) is not negative like this:
10s^2 - 1500s + 29.95=0
(Or can I even do that? )
Thanks for any help!