Question 808940: what is the y intercept of the line that passes through point (-2,1) and is perpendicular to line y=-3x+1
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! perp lines have negative reciprocal slopes
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a line perp to:
y = -3x + 1
has slope: 1/3
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use the point-slope form: y - y1 = m(x - x1)
with point: (-2,1)
y - 1 = (1/3)(x + 2)
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y = (1/3)x + 2/3 + 1
y = (1/3)x + 2/3 + 3/3
y = (1/3)x + 5/3
Answer:
b = 5/3
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