Question

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

Answer 1

40 is false. The second equation could also be rewritten

x + 2y = -10
The two equations are the same line.

48 is false.