Jawapan

2016-09-18T20:25:32+08:00
Y=2x²-3x+1.... dy/dx=4x-3 , (2,3)..... dy/dx=4(2)-3.... dy/dx = 5.... y=mx+c.... y=5x+c , (2,3) 3=5(2)+c 3=10+c c=-7 y=5x-7