shell0409 shell0409
  • 21-10-2016
  • Mathematics
contestada

Write the equation of the line that is perpendicular to the graph of y=-4x-9, and whose y-intercept is (0,3)

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linktra
linktra linktra
  • 25-10-2016
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
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apologiabiology
apologiabiology apologiabiology
  • 25-10-2016
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
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