D0,-2(x, y)(3, 5). the point (x, y) is: (1, 3) (-3/2, -5/2) (-6, -10)

(-3/2, -5/2)

Step-by-step explanation:

When a point is dilated about the origin, each coordinate value is multiplied by the dilation factor. You seem to have ...

... -2x = 3 ⇒ x = -3/2

... -2y = 5 ⇒ y = -5/2

In each case, you solve the linear equation by dividing by the coefficient of the variable.

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

i think the length is 12 and the width is 17