Question 42476
The demand equation for a certain type of printer is given by
D = -200p + 35000 or y = -200p + 35000
The supply equation is predicted to be
S = -p^2 + 400p - 20000 or y = -p^2 + 400p - 20000
So ....
y = -p^2 + 400p - 20000
-200p + 35000 = -p^2 + 400p - 20000
0 = -p^2 + 600p - 55000
*[invoke quadratic "p", -1, 600, -55000]
{{{ graph( 1000, 1000, 100, 500, -10, 10, -x^2 + 600x - 55000) }}}