Question

Tentukan persamaan garis yg melalui titik (4,-6) dgn sejajar dgn garis y=2x+3

Answer 1

Y=2x+3
m1 = 2
m2 = m1 = 2

y - y1 = m2 ( x - x1 )
y + 6 = 2 ( x - 4 )
y + 6 = 2x - 8
y = 2x - 8 - 6
y = 2x - 14

Answer 2

X1 = 4
y1 = -6
dgn garis y= 2x + 3
syarat sejajar m = 2

y - y1 = m ( x - x1 )
y - (-6) = 2 ( x - 4 )
y + 6 = 2x -8
y = 2x -8 -6 
y = 2x -14