Question

Which two lines are parallel?

5y=2x-5
5y=-4+3x
5y-3x=-1
1 and 2
2and3
None of the lines are parallel
1and 3

Answer 1

Correct answer is B.

Parallel lines have equal slopes.


`5y=2x-5 \Rightarrow y= (2)/(5) x-1 \Rightarrow m=(2)/(5) \\ \\5y=-4+3x \Rightarrow y= (3)/(5)x- (4)/(5) \Rightarrow m= (3)/(5) \\ \\5y-3x=-1 \Rightarrow 5y=3x-1 \Rightarrow y=(3)/(5)x- (1)/(5) \Rightarrow m= (3)/(5)`