7 14 Not DA CO singinim 12 f Q = 950 Q=900 e - Q=800 D N = 6 2 0 Q =500 Q= 300 B Q= 200 A Q= 100 0 1 2 3 4 5 6 7 L pointA - B constanton two 20 10 Point C - D SLA 2 point D- e point e - F point F - G