5.2 Review Worksheet (continued)
40. Show that LMNP is a parallelogram.
y
M (0, 4)
4
2
L (–3, 0)
N (3, 0)
x
0
–4 –2
2
4
–2
–4
P (0, –4)
Identify which lines are perpendicular. 41. y = 6 x ; y = x ; y = − x ; y = − 6 x
1 6
1 6
42. y − 9 = 3( x + l); y = − 1 3
x + 5; y = 0; x = 6
43. x − 6 y = 15; y = 3 x − 2; y = − 3 x − 3; y = − 6 x − 8; 3 y = − x − 11
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