Algebra
posted by mysterychicken .
40. The graph of the following system yields perpendicular lines.
x + 2y = 10
4y = 2x + 20
(True)
48. The graph of the following system yields parallel lines.
x  2y = 1
y = 3x + 10
(False)
Thanks
MC

40 is false. The second equation could also be rewritten
x + 2y = 10
The two equations are the same line.
48 is false.