SOLUTION: I need help determining whether each pair of equations represents perpendicular lines. y = �x + 7, y � x = 3 Thank you so much!

SOLUTION: I need help determining whether each pair of equations represents perpendicular lines. y = �x + 7, y � x = 3 Thank you so much!

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Question 446779: I need help determining whether each pair of equations represents perpendicular lines.
y = �x + 7, y � x = 3
Thank you so much!
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!

y = -x +7
slope of first equation = -1
y - x = 3
=> y = x+3
slope of second equation = 1
product of slopes = 1 * -1 = -1
so, these are perpendicular lines.

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