CK-12 Basic Geometry, Volume 1 of 2 by CK-12 Foundation

Author:CK-12 Foundation
Language: eng
Format: epub
Publisher: CK-12 Foundation

If we take a closer look at these two lines, the slopes are both .

This can be generalized to any pair of parallel lines.

Parallel lines have the same slope.

Example 5: Find the equation of the line that is parallel to and passes through (9, -5).

Solution: Recall that the equation of a line is , where is the slope and is the intercept. We know that parallel lines have the same slope, so the line will have a slope of . Now, we need to find the intercept. Plug in 9 for and -5 for to solve for the new intercept .

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