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Find the slope of a parallel line and the slope of a perpendicular line

0 votes
y=x
asked Feb 22, 2016 in PRE-ALGEBRA by anonymous

1 Answer

0 votes

The equation is image.

The slope intercept form of a line equation is image, where image is slope of the line and image is image-intercept.

Compare the line equation with slope intercept form.

Here image and image.

The slope of the line is image.

Slopes of the parallel lines are equal.

The slope of a line parallel to the line equation image is image.

Product of slopes of perpendicular lines always be image.

image

image

image.

The slope of the perpendicular line is image.

answered Feb 22, 2016 by Sammi Mentor

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