2 3
4
5
6
4.9 Parallel + perpendicular Lines
Directions: Determine if segments AB and CD are parallel, perpendicular, or neither.
1. AB formed by (-2, 13) and (0,3)
2. AB formed by (3, 7) and (-6, 1)
CD formed by (-5,0) and (10,3)
CD formed by (-6, -5) and (0, -1)
3. AB formed by (-6, 2) and (-2, 4)
CD formed by (-1, 11) and (5, -7)
4. AB formed by (-3, 8) and (2, 3)
CD formed by (-4, 6) and (-8, 2)
I
6. AB formed by (6,5) and (3, -1)
CD formed by (2,-5) and (-4,7)
5. AB formed by (-8, -1) and (-4, 2)
CD formed by (0, -3) and (12, 6)
Directions: Determine if the given equations are parallel, perpendicular, or neither.
3
7. 3.x + 2y = 6 and
8. 3y = 4x + 15 and 9x + 12 = 12
2
x + 5
9. 81-21 = 4 and x + 4y = -12
10.3x + 2y = 10 and 2x + 3y = -3