tentukan gradien garis dengan persamaan berikut, a. y = - 2x b. x = 3y - 7 c. 2y - 4x = 0 d. x + 3y - 3 = 0 e. 2x + 7y + 15 = 0

a. y = - 2x
m = - 2

b. x = 3y - 7
x - 7 = 3y
x/3 - 7/3 = y
1/3x - 7/3 = y
jdi m = 1/3

c. 2y - 4x = 0
2y = 4x
y = 4/2x
y = 2x
jadi m = 2

d. x + 3y - 3 = 0
3y = - x + 3
y = - x/3 + 3/3
y = - 1/3x + 1
jadi m = - 1/3

e. 2x + 7y + 15 = 0
7y = - 2x - 15
y = - 2/7x - 15/7
jadi m = - 2/7

a. 2x+y =0
M = -2/1 = -2
b. x -3y+7=0
M = -1/(-3)= 1/3
c. -4x+2y=0
M = -4/-2 = 2
d. x+3y-3=0
M = -1/3
e. 2x+7y+15=0
M = -2/7