Question

Tentukan gradien dari :
y = 5x +1
y = 2x + 2
-2y = 5x + 1
-3x - 6y - 9 = 0
-8x +2y + 1 = 0
(beserta cara pengerjaannya..)

Answer 1

Rumus y = mx +c (m=gradien)
y = 5x + 1
m = 5
y = 2x+2
m=2
-2y = 5x+1
y = -5/2x-1/2
m= -5/2
-3x-6y-9 = 0
-6y = 3x+9
y = -1/2x-3/2
m = -1/2
-8x+2y+1 = 0
2y = 8x -1
y = 4x-1/2
m = 4

Answer 2

Y = 5x + 1
m = 5

y = 2x + 2
m = 2

-2y = 5x + 1
m = 5/-2 = -5/2

-3x - 6y - 9 = 0
m = -a/b
= 3/-6
= -1/2

-8x +2y + 1 = 0
m = -a/b
= 8/2
= 4