Question

Persamaan garis yang melalui titik a(-3,-4) dan b(-4,-6)
a. y= x +6
b. y= 2x-2
c. y= x-6
d. y= 2x + 4
e. y= 2x-4

Answer 1

(-3,-4) dan (-4,-6)
(y2 - y1)/(x2 - x1) = (y - y1)/(x - x1)
=> (-6 - (-4))/(-4 - (-3)) = (y - (-4))/(x - (-3))
=> -2/-1 = (y+4)/(x + 3)
=> y + 4 = 2x + 6
=> y = 2x + 2
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