[" 15.The line joining the points "(-1,3)" and "(4,-2)" will "],[" pass through the point "(p,q)" if "]

Straight line joining the points (2,3) and (-1,4) passes through the point (alpha, beta) if

Find the equation of the straight line perpendicular to the line joining the points (2,3) and (3,-1) and passing through the points (2,1).

The plane which bisects the line joining the points (4, -2, 3) and (2,4,-1) at right angles also passes through the point :

In what ratio is the line joining the points (2,3)a n d\ (4,-5) divided by the line passing through the points (6,8) and (-3,-2).

If the straight line joining the points (2,3) and (-1,4) passes through the point (alpha , beta) then ……………….

In what ratio is the line joining the points (4, -5) and (2,3) divided by the line passing through the points (6,8) and (-3,-2).

Find the slope of the following lines. (i) Line parallel to X-axis . (ii) Line passing through the points A(-2,-3) and B(2,4) (iii) Line passing through the points P (3,2) and Q(4,1) . (iv) Line passing through the points A(-3,5) and B (4,-1). (v) Line passing through points C(3,5) and D(-2,-3) . (vi) Line passing through the points A (6,-2) and B (-3,4) .

The slope of line passing through the points P(-3,5) and Q(4,-1) is