"Line l has a positive slope and passes through the point (0,0). If line k is perpendicular to line l, which of the following must be true?
A - Line k passes through the point (0, 0)
B - Line k has a positive slope
C - Line k has a negative slope
D - Line k has a positive x-intercept
E - Line k has a negative y-intercept
OK, so if two lines are perpendicular to each other - I know their slopes are negative reciprocals of each other. With only one point though how do I find a slope? I know I know all the information to do this problem, for some reason determining what knowledge comes in to play is giving me a hard time.
Any ideas on where I should go from here?
A - Line k passes through the point (0, 0)
B - Line k has a positive slope
C - Line k has a negative slope
D - Line k has a positive x-intercept
E - Line k has a negative y-intercept
OK, so if two lines are perpendicular to each other - I know their slopes are negative reciprocals of each other. With only one point though how do I find a slope? I know I know all the information to do this problem, for some reason determining what knowledge comes in to play is giving me a hard time.
Any ideas on where I should go from here?