Demand Equation. The price(in dollars),and the quantity x sold of a certain product, obey the demand equation. I can't figure out what price the company should charge to maximize revenue

p=-1/10x+150

R=p*x
R=((-1/10)*x+150)*x
R=(-1/10)*x^2+150x
y=ax^2+b*x+c
a=-1/10
b=150
c=0
-2 b/2a=150/2*(-1/10)
-b/2a=150/1/5
-b/2a=750
R max=(-1/10)*x^2+150x
R max=(-1/10)*750^2+150*750
R max=-562500/10+112500
R max=-56250+112500
R max=56250

1 answer

well, recall what you were told:

The price(in dollars) p,and the quantity sold x obey the demand equation

p=-1/10x+150

You found that maximum revenue R occurs at x=750, so

p = -75+150 = 75
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