SOLUTION: decide whether the pair of lines is parallel perpendicular or neither 2x+3y=9 3x-2y=8

Question 285985: decide whether the pair of lines is parallel perpendicular or neither 2x+3y=9 3x-2y=8
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
EQ.1.
2x+3y=9
3y = -2x + 9
y = -2/3x+3
.
EQ.2.
3x-2y=8
-2y = -3x+8
y = 3/2x+4
.
Since slope of EQ.1 is -2/3, a perpendicular line will have a negative reciprocal slope, which is 3/2.
EQ.2 has that slope, so they are perpendicular.
.

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