3.2.4 Slopes of Parallel and Perpendicular Lines - Practice
1. The equations of four lines are given. Identify which lines are parallel. Line 1: = − y x
2. Show that quadrilateral ABCD is a parallelogram.
1 2
6 Line 2: x − 2 y = − 1 Line 3: y = 4 x + 6 Line 4: + = − y x 3
1 4
( 6)
4. Write an equation in slope-intercept form for the line containing the point (2, 1) and parallel to = − y x .
3. Write an equation in slope-intercept form for the line that is parallel to y = − 7 x − 8 and that passes through the point (7, − 8).
5 3
1 3
6. Write an equation in slope-intercept form for the line containing the point (0, 7) and perpendicular to =− + y x .
5. Write an equation in slope-intercept form for the line perpendicular to y = 2 x − 3 that passes through the point ( − 3, − 3).
5 4
11 4
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