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- Thread starter swag312
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- Thread starter
- #1

- Mar 1, 2012

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using the point-slope form, $y-y_1 = m(x-x_1)$Hey, not sure how to translate this from my native language, I hope you understand what I mean.

Write down for the line

y = 2x + 3 perpendicular and parallel lines passing through the point

(1; 1) equations.

parallel lines have the same slope ...

$y-1 = 2(x-1)$

perpendicular lines have slopes that are opposite reciprocals ...

$y - 1 = -\dfrac{1}{2}(x-1)$

... and this post belongs in Pre-algebra and Algebra, not Linear and Abstract algebra