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linktra
I wrote the equation y=-4x+3. I attached a graph that has the original line (in blue), the point you gave (red dot), and my line (in green) so you can see it.
Ver imagen linktra
apologiabiology
perpendicular has slope that multipies to -1
y=mx+b
m=slope
b=yint

y=-4x-9
slope=-4

-4 times what=-1
1/4

y=1/4x+b
yint=(0,3)
y=1/4x+3