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Two lines passing through (3, 2) make an angle of 45°. If the slope of one of the lines is 11 find the slope of the other line.
2 answers
let the slope of the other be m
the angle between them is 45°, and we know that tan 45 = 1
(m - 11)/(1 + 11m) = 1
1 + 11m = m - 11
10m = -12
m = -1.2
the angle between them is 45°, and we know that tan 45 = 1
(m - 11)/(1 + 11m) = 1
1 + 11m = m - 11
10m = -12
m = -1.2
4 answers