SOLUTION: determine whether each pair of lines is parallel, perpendicular, or none. y=3x-8,x+3y=7

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Question 1128822: determine whether each pair of lines is parallel, perpendicular, or none.
y=3x-8,x+3y=7

Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
write in slope-intercept form.
y=3x-8 and y=(-1/3)x+(7/3)
These slopes are 3 and -1/3. They are negative reciprocals in that their product is -1
The lines are perpendicular.


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