tentukan gradien garis yang melalui pasangan titik. a.(1,3) dan (3,9) b.(4),2 dan (7,-3) c.(,2,-1) dan (-4,-2) d.(-2,-3) dan (-4,-5) e.(4,4) dan (8,0) f.(6,7) d

Jawab :

1) y2 - y1/ x2 - x1 = 9 - 3/ 3 - 1 = 6/2 = 3
2) y2 - y1/ x2 - x1 = (-3) - 2/ 7 - 4 = -5/3
3) y2 - y1/ x2 - x1 = (-2) - (-1)/ (-4) - 2 = 3/-6 = - 3/6
4) y2 - y1/ x2 - x1 = (-5)- (-3)/ (-4) - (-2) = 8/6
5) y2 - y1/ x2 - x1 = 0 - 4/ 8 - 4 = -4/4
6) y2 - y1/ x2 - x1 = 3 - 7/(-5) - 6 = -4/-11 = 4/11