Geometry and Prentice Hall Gold

Topics: Geometry, The Grid, Copyright Pages: 3 (374 words) Published: March 8, 2013
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Class
Date

[pic]
Slopes of Parallel and Perpendicular Lines

3-8
Practice
Form G
In Exercises 1 and 2, are lines m1 and m2 parallel? Explain.

1.
1. 2.

Write an equation of the line parallel to [pic]that contains point C.

3. [pic]: y = (5x + 12; C((2, 1) 4. [pic]: y = [pic]x + 7[pic] ; C(7, 1)

5. [pic]: y = [pic]x + 8[pic] ; C(3, 6) 6. [pic]: y = ([pic]x + 5[pic]; C(5, (2)

In Exercises 7 and 8, are lines m1 and m2 perpendicular? Explain. 7. 8.

Write an equation of the line perpendicular to the given line that contains P. 9. P((6, 5); y = 2x ( 310. P(4, 3); y = (3x ( 15

11. P((6, (3); y = x( 112. P(5, 5); y = [pic] x + 11[pic]

Prentice Hall Gold Geometry • Teaching Resources
Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. 73
Name
Class
Date

[pic]
Slopes of Parallel and Perpendicular Lines

3-8
Practice (continued)
Form G
13. The line that represents the right boundary of a street is shown on the grid at the right. a. What is the equation of the left boundary, which is parallel to the right boundary, and passes through point L(200, 100)?

b. Graph the left boundary.

Rewrite each equation in slope intercept form. Then determine whether the lines are parallel. Explain.

14. 2y = x + 1515. 10y + 130 = 50x16. 2y = 15 + 4x
x = 2y + 5(5y = 2x + 116y ( 30 = 12x

Rewrite each equation in slope-intercept form. Then determine whether the lines are perpendicular. Explain.

17. y ( 1 = (x (618. [pic]19. [pic]
[pic]2y = 8x + 185y = 2x + 6
[pic]

20. A town’s building code states that stairs and ramps must have a handrail. The sketch at the right has a scale of 7 in. to each grid space. a. The...
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