SOLUTION: The equation of the line which contains the point (5,10) and is perpendicular to the line through(5,10) and (25,0) has y�intercept (0, b). What is b?

Question 265434: The equation of the line which contains the point (5,10) and is perpendicular to the line through(5,10) and (25,0) has y�intercept (0, b). What is b?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
The equation of the line which contains the point (5,10) and is perpendicular to the line through(5,10) and (25,0) has y�intercept (0, b). What is b?
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Find the slope, m, of the line thru the 2 points.
m = diffy/diffx = -10/20 = -1/2
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The slope of lines perpendicular is the negative inverse, = +2
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Use y = mx + b and the point (5,10) to find b:
10 = 2*5 + b
b = 0

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