Tentukan gradien melalui titik berikut. A. Titik A.(5,4) dan titik B.(6,4) B. Titik B.(-4,-5) dan titik C.(7,-8)

1) mAB = ( y2 - y1) / ( x2 - x1)
= ( 4 - 4) / ( 6 - 5)
= 0 / 1
= 0

2) mBC = ( y2 - y1) / ( x2 - x1)
= ( -8 + 5) / (7 + 4)
= - 3 / 11
= - 3/11

a. titik a. ( 5,4) = x1, y1 dan  b ( 6,4) = x2,y2
     y2-y1/x2-x1 = 4-4/6-5
                         = 1/1 = 1
b. titik b. ( -4,-5) = x1,y1 dan c ( 7,-8) = x2,y2
      y2-y1/x2-x1 = -8-(-5)/7-(-4)
                          = 8-5/11 = 3/11