Q16 of 169 Page 667

Find the angle which the line joining the points and makes with the x - axis.

To find angle, we will find slope using two points

Now as we have m = tanθ

So, angle line makes with the positive x - axis is 60°.

Find the slope and the equation of the line passing through the points:

(5, 3) and ( - 5, - 3)

Find the slope and the equation of the line passing through the points:

(a, b) and ( - a, b)

Prove that the points A(1, 4), B(3, - 2) and C(4, - 5) are collinear. Also, find the equation of the line on which these points lie.

If A(0, 0), b(2, 4) and C(6, 4) are the vertices of a ΔABC, find the equations of its sides.