Question 920424

(30, 20)
(20, 25 ) m ={{{(y[1] - y[2])/(x[1] - x[2] )}}}= -5/10 = -2
***Using point-slope form, {{{y - y[1] = m(x - x[1])}}} P(20,25)
y - 25 = -2(x-20)
y = -2x +65
p(x) = -2x + 65 is the Demand Function