tlg dibantu kakk mau dikumpul
Jawab:
persamaan garis
(1) melalui(-2,-3) ,m = 3
y = m( x- x1) + y1
y = 3(x + 2) - 3
y = 3x+ 6 - 3
y = 3x +3
(2) melalui (-2, 4) ,(6, 3)
y - y1 / y2 - y1 = x - x1/ x2 -x1
(y- 4) / (3-4) = (x + 2) / (6 +2)
(y - 4) / -1 = (x + 2)/ 8
8( y-4)= - 1(x + 2)
8y - 32 = -x - 2
8y = - x + 30
x+8y - 30= 0
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