What are the domain and range of this function?
y = (x + 3)^2 - 5

Domain:

(−∞,∞),{x|x∈R}

Range:

[−5,∞){y|y≥−5}

Step-by-step explanation: so its D

their is no graph showing

step-by-step explanation:

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