If the slope of an oblique line 'l' is m, find the slope of any line which is at right angles to l.

The slope of a line is double of the slope of another line. If tangent of the angle between them is 1/3 , find the slopes of the lines.

Find slope of the line that makes angle pi/6

What is the slope of the line whose inclination is : 0^@ ?

What is the slope of the line whose inclination is : 60^@ ?

What is the slope of the line whose inclination is : 45^@ ?

What is the slope of the line whose inclination is : 90^@ ?

At any point (x, y) of a curve, the slope of the tangent is twice the slope of the line segment joining the point of contact to the point (– 4, –3). Find the equation of the curve given that it passes through (–2, 1).

What is the slope of the line whose inclination is : 120^@ ?

What is the slope of the line whose inclination is : 150^@ ?