Please help. y=5/2x+6 ,y=5/2x-15
A. The two lines given by the above equations are perpendicular.
B. the two lines given by the above equations are perpendicular.
C. The two lines given by the above equations are parallel.
D. The two lines given by the above equations coincide.

Question

Please help. y=5/2x+6 ,y=5/2x-15
A. The two lines given by the above equations are perpendicular.
B. the two lines given by the above equations are perpendicular.
C. The two lines given by the above equations are parallel.
D. The two lines given by the above equations coincide.

anonymous · Answer

its not perpendicular since the slope of perpendicular lines are negative reciprocals meaning if the first was 5/2 then the second would have to be -2/5
They do not coincide or they would be the same equation
so they are parallel since thye have the same slope but a different y-intercept meaning they will never cross

anonymous · Answer

Thanks so much well that was fast!