SOLUTION: Determine whether the graphs of 2x+y=-9 and -4y=-2x+7 are parallel, perpendicular, or neither
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Question 933896: Determine whether the graphs of 2x+y=-9 and -4y=-2x+7 are parallel, perpendicular, or neither
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
we are given
2x +y =-9
-4y =-2x + 7
next put each equation in standard form, y = mx + b
y = -2x -9
y = x/2 - 7/4
the slope of these two lines is the negative reciprocal of the other, the lines are perpendicular
here is their graph
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