PSATs

aeshchina
Fri, 20 Oct 2006 00:59:48 +0000

whatismouse, I’m pretty sure you’re right.

Bottom line is, 1/2 slope is the answer, because in the original equation, 2x and y are ON THE SAME SIDE, and both positive. You need to isolate y to find the slope, the coefficient won’t tell you the slope straightaway. When 2x is transferred to the other side, it becomes negative. A perpendicular line’s slope would be the negated reciporcal of the line’s slope it’s perpendicular with. The negated reciporcal of -2 is + 1/2.