( TR starts at O when q equals O ii TR initially increases as q increases, but then decreases as q increases (iiTR equals 0 again, when q equals 250 a tR curve is not a straight line(nolinear equation tR=pxq=(500 -2q)q =500q-2q QUADRATIC equation◼ (i) TR starts at 0 when q equals 0 ; ◼ (ii) TR initially increases as q increases , but then decreases as q increases ◼ (iii) TR equals 0 again , when q equals 250. ❑ TR curve is not a straight line (nolinear equation) ◼ TR = p x q = ( 500 - 2q ) q = 500q - 2q2 ◼ QUADRATIC equation