Question

The function f(x) = -x2 + 40x - 336 models the daily profit, in dollars, a shop makes for selling donut

Answer 1

Answer:

This question should be worth atleast 20 points

Step-by-step explanation:

a. For the vertex, input the funtion into the calculator, and see where the turning piont is, that is the vertex.

b. Solve using this vormula.

x= (-b ±$\sqrt{b^2 - 4ac}$)/2a

you will get two asnwrs, both are correct.