Study line segments in the number plane.

Line Segment Explorer
Investigate line segments — midpoints, length and slope

Drag the endpoints to explore a variety of line segments. Use the buttons below to see how you can use rightangle triangles and Pythagoras' theorem to solve problems relating to line segments.

Exact length:     Gradient:     Equation: 



Interactively study line segments

Enter an equation for a parabola:

Use either standard or vertex form,
e.g. y = 2x^2 - 4x - 5 or (x - 1)^2 = 1/2 (y + 7)