Find The Inclination On The Line Whose Slope Is .

Find the slope of the line through the points (4, –6), (–2, –5).

Determine λ, so that 2 is the slope of the line through (2, 5) and (λ, 3).

Find whether the points (–a, –b), [–(s + 1)a, –(s + 1)b] and [(t – 1)a, (t – 1)b] are collinear?

For what value of k the points (k, 2 – 2k), (–k + 1, 2k) and (–4 – k, 6 – 2k) are collinear?

Find the angle between the lines joining the points (0, 0), (2, 3) and (2, –2), (3, 5).

The angle between two lines is  and the slope of one of them is . Find the slope of the other line.

A line passes through the points A(2, –3) and B(6, 3). Find the slopes of the lines which are  

1. parallel to AB

2. perpendicular to AB

Find the equation of the straight line parallel to y-axis and at a distance  

(i).3 units to the right

(ii). 2 units to the left

Find the equation of the straight line parallel to x-axis and at a distance

(i). 5 units above the x-axis

(ii). 9 units below the x-axis