SOLUTION: Determine which two equations represent parallel lines.
(a) y=-9x+4
(b) y=9x+4
(c) y=1/9x+4
(d) y=-9x+5
A) (a) and (d)
B) (a) and (c)
C) (a) and (b)
D) (b) and (c)
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-> SOLUTION: Determine which two equations represent parallel lines.
(a) y=-9x+4
(b) y=9x+4
(c) y=1/9x+4
(d) y=-9x+5
A) (a) and (d)
B) (a) and (c)
C) (a) and (b)
D) (b) and (c)
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Question 127443: Determine which two equations represent parallel lines.
(a) y=-9x+4
(b) y=9x+4
(c) y=1/9x+4
(d) y=-9x+5
A) (a) and (d)
B) (a) and (c)
C) (a) and (b)
D) (b) and (c)
I came up with C (a and b). Any confirmation or suggestions? Thanks! Answer by Earlsdon(6294) (Show Source):
You can put this solution on YOUR website! Recalling that parallel lines have identical slopes, the equations in (a) and (d) both have a slope of m = -9, so the answer should be:
(a) and (d) which is choice: A
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