If P(6, -2), Q(-2, 8), R(-4, 3), and S(-9, y), find the value of y so that line PQ ⊥ line RS.

q: 92 degrees

hope i ^-^

(3x-8) or (3x+8)

step-by-step explanation:

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

(0.2)+(-8)=0.3+-3+0.3m is the equation i guess? ?

step-by-step explanation: