Page 12 - garis lurus2_Classical

Ms 118 JOM MAIN SUSUN – SUSUN

Y=mx +c

2) 3x – 4y = 12

-4y = -3x + 12
1) 2 + 3y = 6x
-4y = -3x +12
3y = 6x -2
-4 -4 -4
3y =6x -2 3

3 3 3 y = x - 3
4
2
y = 2x –
3
3 m= , c= -3
4
2
m=2 , c = –
3

4)2y=-5x +1
3) 20 = 4y +x
2y= -5x + 1
4y + x = 20
2 2 2
4y=- x + 20
y= -5 x + 1
4y = -x + 20
2 2
4 4 4
y=-x +5 atau y=-1 x + 5

4 4 −5 1
m= , c=
1 2 2
m= - , c = 5
4