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phpmathgeometrycartesian

Calculate point on a line if the slope is known

Trying to compute the left and top of a page element.

The element needs to be positioned on an imaginary line that runs from 0,0 of the page window to a point (roughly) equal to 425 pixels from the beginning of the line.

The slope of the line is -.375.

How can I calc the left and top using php?

Solution

  • Something like this?

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    In general:

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