For each function, state the a) end behavior, b) y-intercept, c) maximum number of extrema, d) the roots and their multiplicity, e) location of bounce(s), location of wiggle(s) and g) sketch the graph. (Hint: Write in factored form 1st)

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

the answer would be c

the answer is b.

surface area: 169π

volume: 366π

i got it down.