Find graphically the coordinates of the vertices of the triangle formed by the lines y = 0, y = x and 2x + 3y = 10. Hence, find the area of the triangle formed by these lines.

Find the distance between the following pair of points :

(2, 3), (4, 1)

Find the distance between the following pair of points :

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

A is a point on y-axis whose ordinate is 4 and B is a point on x-axis whose abscissa is -3. Find the length of the line segment AB.