The domain of S is D =

The range of S is R =

9514 1404 393

  D = {3, 4, 5}

  R = (5, 7}

Step-by-step explanation:

The domain is the set of x-values: D = {3, 4, 5}.

The range is the set of y-values: R = {5, 7}.

just needed some points but try socratic

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