Determine whether the relation is a function. Explain.
(-1, 6), (1, 4), (-1, 2), (1, 6), (-1, 5)

The relation is not a function.

Step-by-step explanation:

The x-values of the relation are repetitive, making it not a function.

Not a function

Step-by-step explanation:

-1 is used more than once

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

you just switch the numbers basically so it would be 3/17