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CTK Exchange
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Michael Klipper
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Jul-17-03, 08:56 PM (EST) |
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3. "RE: Y-Intercept"
In response to message #2
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I very much doubt that there is any better formula. Personally, I think the formula b = y1 - m*x1 is very nice. While it does require calculation of the slope, you can look at it as saying you start from y1 and you run down a hill of slope m over a distance of x1 horizontal units. |
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Vladimir
Member since Jun-22-03
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Jul-18-03, 11:45 PM (EST) |
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4. "RE: Y-Intercept"
In response to message #2
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If the two points A, B are on a line through the origin, we have a direct proportionality yA/xA = yB/xB and the y-axis intercept of this line is q = 0. If the 2 points are not colinear with the origin, i.e., we do not have a direct proportionality, the y-axis intercept tells us the distance we would have to shift the origin and the x-axis up/down to achive the direct proportionality: (yA - q)/xA = (yB - q)/xB However, I do not see it as a much of an improvement |
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