Gradien yg melalui titik(3,-2)dan tegak lurus garis(1,-4)adalah
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(1,-4) = (x2,y2)
Rumus mencari gradien :
y1 - y2
_____
x1 - x2
-2 - (-4)
______
3 - 1
-2 + 4
____
3 - 1
2
__
2
= 1
jadi gradiennya adalah 1