The set of ordered pairs described in the table below can be described as which of the following?
x | y
0 5
2 6
2 7

a) a relation only

b) a function only

c) both a relation and a function

d) neither a relation nor a function

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

80

step-by-step explanation:

to complete this square you have to rotate about the origin 270 degrees clockwise.