SOLUTION: Please help. Determine which two equations represent parallel lines (A) y = -2x + 5 (B) y = 2x + 5 (C) y = 1/2x + 5 (D) y = -2x + 9 Thanks JMS

Algebra ->  Equations -> SOLUTION: Please help. Determine which two equations represent parallel lines (A) y = -2x + 5 (B) y = 2x + 5 (C) y = 1/2x + 5 (D) y = -2x + 9 Thanks JMS      Log On


   

Question 112033: Please help.
Determine which two equations represent parallel lines
(A) y = -2x + 5 (B) y = 2x + 5 (C) y = 1/2x + 5 (D) y = -2x + 9
Thanks
JMS
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Remember, parallel lines have equal slopes. Since (A) and (D) have equal slopes of -2 (the slope is the number in front of x), these two lines are parallel.