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Identify an equation in point-slope form for the line perpendicular to y = -1/3x+6 that passes through (0,-2)

User Andrea Reina
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1 Answer

19 votes
19 votes

Answer: y + 2 = 3x

Step-by-step explanation:

Find the slope of the perpendicular line

When two lines are perpendicular, the product of their slopes is -1. This means that the slopes are negative-reciprocals of each other.

⇒ if the slope of this line = - ¹/₃

then the slope of the perpendicular line (m) = 3

Determine the equation

We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:

⇒ y - (-2) = 3 (x - 0)

y + 2 = 3x

To test my answer, I have included a Desmos Graph that I graphed using the information provided in the question and my answer.

Identify an equation in point-slope form for the line perpendicular to y = -1/3x+6 that-example-1
User Lared
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