Plot the line `-3x-5y=15`.

Plot the line 2x-3y=12 .

Plot the line 2x-3y=12 .

Draw the lines 3x- 5y =15.

What is the area of the region bounded by the line 3x-5y = 15 . x =1, x = 3 and x-axis in sq units ?

Find the slope of a line perpendicular to the line 3x+5y=8 .

Find the slope of a line perpendicular to the line 3x+5y=8 .

Find the equation of a line passing through the intersection of the lines 3x-y=1 and 5x+2y=9 and parallel to the line 3x+5y=8 .

Find the equation of a line passing through the intersection of the lines 3x-y=1 and 5x+2y=9 and parallel to the line 3x+5y=8 .

Orthocentre of the triangle formed by the lines xy-3x-5y+15=0 and 3x+5y=15 is