In a cartesian co-ordinate system the coordinate of two points p and q are (2,4,4) and (-2, - 3,7) respectively. Find pq and its magnitude
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1. General form.
The general form of the equation of a straight line is
ax+by+c=0
Where a, b and c are arbitrary constants. This form includes all other forms as special cases. For an equation in this form the slope is −ab and the y intercept is −cb.
2. Point-intercept form.
y=mx+b
Where: m is the slope of the line; b is the y-intercept of the line; x is the independent variable of the function y.
3. Using two points
In figure below, a line is defined by the two points A and B. By providing the coordinates of the two points, we can draw a line. No other line could pass through both these points and so the line they define is unique.
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