Question

Gradien garis yang melalui titik (2,-6) dan (-2,4) adalah

Answer 1

(x1,y1)=(2,-6)
(x2,y2)=(-2,4)
(y-y1)/(x-x1)=(y2-y1)/(x2-x1)
(y+6)/(x-2)=(4+6)/(-2-2)
(y+6)/(x-2)=10/-4
y+6=-10/4x+5
y=-10/4x-1
gradiennya adalah -10/4

Answer 2

Y-y1 / y2-y1 = x-x1 / x2-x1
y-(-6) / 4-(-6) = x-2 / (-2)-2
y+6 / 10 = x-2 / -4
-4(y+6) = 10(x-2)
-4y-24 = 10x-20
-4y = 10x+4
y = -10/4 x -1

gradien = m =  -10/4= -5/2