Jawabanmu

2014-04-09T08:13:48+07:00
Ttp puncak (p, q) =(2, -3) y=a(x-p)^2+q y=a(x-2)^2-3 melalui titik (-2,-11) -11=a(-2-2)^2-3 -11=a(-4)^2-3 -11=16a-3 -11+3=16a -8=16a a=16/(-8) a=-2 substitusi a=-2 ke pers y=a(x-2)^2-3 y=-2(x-2)^2-3 y=-2(x^2-4x+4)-3 y=-2x^2+8x-8-3 y=-2x^2+8x-11 semoga membantu..