Question

Persamaan garis yg melalui titik (-2,1) dan bergradien -1/2 adalah....Dgn caranya

Answer 1

Y-y1=m(x-x1)
y- 1= -1/2(x-(-2))
y-1=-1/2(x+2)
y-1=-1/2x+(-1)
y-1=-1/2x-1
y=-1/2x-1+1
y=-1/2x
----------x2
2y=-1x