Question

Tentukan pasangan garis yang melalui pasangan titik-titik berikut:
a) (-4,-3) dan (0,0)
b) (0,0) dan (6,-3)
c) (0,6) dan (-8,0)
d) (5,0) dan (0,2)

Answer 1

A. ( -4,-3 ) ( 0,0 )
M = -3 - 0 / -4 - 0
= -3/-4
b. ( 0,0 ) ( 6,-3 )
M = 0 - (-3) / 0 - 6
= 3/-6
= 1/-2
c. ( 0,6 ) ( -8,0 )
M = 6 - 0 / 0 - (-8)
= 6/8
= 3/4
d. ( 5,0 ) ( 0,2 )
M = 0 - 2 / 5 - 0
= -2/5

Answer 2

Gradien masing masing gradien udah tinggal mencari pers garisnya;
a. y-yi=m(x-xi)
y-(-3)=4/3(x-4)
3( y+3)=4(x-4)
3y+9=4x-16
3y-4x+25=0
b. y-yi=m(x-xi)
y-(-3)=-2(x-6)
y+3=-2x+12
y+2x-9=0
c