plz some one help/ If the x- and y-values in a one-to-many relation are reversed, then in the resulting relation ( ) input output value maps to ( ) at least more than no more than exactly one ( ) output input value. This means the resulting relation ( ) might cannot must be a function.

I don't know honestly

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

c. 6tan80

step-by-step explanation: