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Calculating linear equations from planes

The points on a plane: A(-3;2) and B(1.5;-3) are included in a parallel right to another one which crosses point at P(-2;-4)
a) The equation of this last right
b) The equation of the right which passes through the origin and is perpendicular to both of them

Solution Preview

a) Given to points A(-3,2) and B(1.5,-3) we can find the slope
of the line (right) passing through them.
The slope is m = (-3-2)/(1.5-(-3)) = ...

Solution Summary

The equation of a line from planes is calculated.