Posted by Anonymous on .
lines a and b are perpendicular and have the same xintercept. The equation of line a is x+2y4=0. Determine the yintercept of line b.

Math 
Steve,
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