Posted by **Anonymous** on Sunday, August 12, 2012 at 11:33pm.

lines a and b are perpendicular and have the same x-intercept. The equation of line a is x+2y-4=0. Determine the y-intercept of line b.

- Math -
**Steve**, Monday, August 13, 2012 at 12:02am
line a has slope -1/2, and goes through (4,0)

line b has slope 2 and goes through (4,0):

2x - y - 8 = 0

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