tentukan persamaan garis yang melalui titik berikut. a.A(3,-2),dan B(-1,3) b.Q(-5,0),dan R(3,4) c.K(7,3)dan L(-2,-1) d.M(1,1) dan N(-6,4) tolong bantuan nya,tol

a. y-y¹ / y²-y¹ × x-x¹ / x¹-x²
= y+2 / 3+2 × x+3 / -3-1
= y+2 / 5 × x+3 / -4
= -4y-8 = 5x+15
-4y = 5x+15+8
-4y = 5x+23
b. y-y¹ / y²-y¹ × x-x¹ / x¹-x²
= y-0 / 4-0 × x+5 / 3+5
= y / 4 × x+5 / 8
= y / 1 × x+5 / 2
2y = x+5
c. y-y¹ / y²-y¹ × x-x¹ / x¹-x²
= y-3 / -1-3 × x-7 / -2-7
= y-3 / -4 × x-7 / -9
= -9y+27 = -4x+28
= -9y = -4x+28-27
-9y = -4x+1
d. y-y¹ / y²-y¹ × x-x¹ / x¹-x²
=y-1 / 4-1 × x-1 / -6-1
= y-1 / 3 × x-1 / -7
= -7y+7 = 3x-3
= -7y = 3x-3-7
-7y = 3x-10