Your family is having a reunion this weekend. Your aunt is worried about the heat. Yesterday , the temperature rose 10 degrees between 10 a. m. and 3 p. m. What was the average rate of increase in temperature?

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

a) is $10.34

b) is 6 toppings

it is a horizontal line.

the five is the numerator