Which equation represents the proportional relationship between oil and vinegar. x = 1.5y
x = 1.5y

y = 1.5x
y = 1.5x

y = 1/1.5 x
y = 1/1.5 x

x = 5.1y

anser is a

step-by-step explanation:

negitive slope

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