A line passes through `(x_(1), y_(1)) " and " (h, k)` . If slope of the line is m, show that ` k - y_(1) = m (h - x_(1))`.

The slope of the line y=1/2 x is

The slope of the line 4x-5y-1=0 is

The slope of the line x/a+y/b=1

Three points P (h, k), Q(x_(1) , y_(1))" and " R (x_(2) , Y_(2)) lie on a line. Show that (h - x_(1)) (y_(2) - y_(1)) = (k - y_(1)) (x_(2) - x_(1)) .

If three points (h, 0),(a, b) and (0, k) lie on a line, show that a/h + b/k = 1 .

Slope of the line (x)/(a) +(y)/(b) = 1 is ......

A : The equation of the line passing through (1, 2) with slope 2//5 is 2x-5y+8=0 R : The equation of the line passing through (x_(1), y_(1)) with slope m is y-y_(1)=m(x-x_(1))

A : Equation of the line passing through (-2, 3) and parallel to 3x-4y+7=0 is 3x-4y+18=0 . R : Equation of the line passing through (x_(1), y_(1)) and parallel to ax+by+c=0 is a(x-x_(1))+b(y-y_(1))=0

A : Equation of the line passing through (3, -4) and perpendicular to 2x+3y+7=0 is 3x-2y-17=0 . R : Equation of the line passing through (x_(1), y_(1)) and perpendicular to ax+by+c=0 is b(x-x_(1))-a(y-y_(1))=0