imbeingcrystalqueer
imbeingcrystalqueer imbeingcrystalqueer
  • 19-12-2018
  • Mathematics
contestada

write the equation of a line that is perpendicular to the given line and passes through the given point
y-2=-1/4(x+3);(-3,5)

Respuesta :

gmany
gmany gmany
  • 21-12-2018

The point-slope form:

[tex]y-y_1=m(x-x_1)[/tex]

m - slope

We have the line

[tex]y-2=-\dfrac{1}{4}(x+3)\to m=-\dfrac{1}{4}[/tex]

If m₁ and m₂ are the slopes of the perpendicular lines, then

[tex]m_1m_2=-1\to m_2=-\dfrac{1}{m_1}[/tex]

Therefore the slope of ouer line is

[tex]m=-\dfrac{1}{-\frac{1}{4}}=4[/tex]

We have the point (-3, 5). Put the coordinates to the equation of a line in the point-slope form:

[tex]y-5=4(x-(-3))\\\\\boxed{y-5=4(x+3)}[/tex]

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