Parallel And Perpendicular Lines
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1
2Name: __________________________________________________
Date: ____________________
Period: _____
Algebra 1
Assignment 21: Parallel and Perpendicular Lines
Directions for 1-6: Write the Point-Slope form of the equation for each line described below.
= �� ( �� − ��
)
Point-Slope Form: �� − ��
��
��
4
1. Through: ( 3, 2 ) Parallel to �� = −2�� + 5
2. Through: ( 4, −3 ) Perpendicular to �� =
�� + 1
5
1
1
3. Through: ( −2, 5 ) Perpendicular to �� = −
4. Through: ( 6, −5 ) Parallel to �� = −
�� − 2
�� − 1
4
2
3
5. Through: ( −3, −7 ) Perpendicular to �� = −
6. Through: ( 6, 7 ) Parallel to �� = 3�� − 4
�� + 21
7
Directions for 7-10: Write the Slope-Intercept form of the equation for each line described below.
Slope-Intercept Form: �� = ���� + ��
5
7. Through: ( −1, −2 ) Parallel to �� = 4�� − 1
8. Through: ( 5, −2 ) Perpendicular to �� =
�� + 1
2
1
2
9. Through: ( −4, 2 ) Perpendicular to �� = −
10. Through: ( 6, 4 ) Parallel to �� = −
�� − 2
�� + 2
3
3
11. Write the Slope-Intercept form of the equation for
12. Write the Slope-Intercept form of the equation
the line parallel to the line graphed below that has a
for the line perpendicular to the line graphed
y-intercept at ( 0, −3 ) .
below that has a y-intercept at ( 0, 2 ) .
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