For the given slope of line l1, (a) find the slope of line a l2 parallel to l1, and (b) find the slope of a line l3 perpendicular to l1.m = 0
A. (a) 0; (b) -1
B. (a) 0; (b) undefined
C. (a) 
; (b) -9
D. (a) undefined; (b) 0
Answer: B
Mathematics
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C. 
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- 
= 3
A. -2 B. 2, 38 C. 3, 8 D. 2
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A. 
B. 
C. 
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