3.2 Review Worksheet (continued)
Graph each line. 9. = − y x 2
1 2
10. y = 2
3.2.3 Point-Slope Form Write the equation of each line in point-slope form. 11. the line through (0, − 2) and (4, 6) 12. the
− and line through (6, 4) with slope 2 3
13. Graph. y − 7 = x + 4
3.2.4 Slopes of Parallel and Perpendicular Lines Graph each pair of lines. Use slopes to determine whether the lines are parallel, perpendicular, or neither. 14. − − − − AB CD A B C D and for (2, 1), (7, 2), (2, 3), and ( 3, 6)
XY ZW X
15.
− Z W and for ( 2, 5), (6, 2), ( 3, 6), and (4, 0) − − Y
16.
− − L and for ( 4, 2), (4, 2), and ( 4, 6) − − JK JL J K
17. Identify which lines are parallel. =− + = − − + = y x y x x y 3 2; 1;
1 2
x y
2 17; 3
27
+ =
18. Identify which lines are perpendicular. − = + =− + = = y x y x y x 9 3( 1); 5; 0;
1 3
6
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