# Investigating Quadratic Graphs in Factorised Form

- Author:
- Alison Middelkoop

- Topic:
- Parabola

This worksheet allows you to investigate quadratic graphs given in Factorised Form.
Use the sliders to change the values of a, b and c and note what happens to the shape of the graph, and where it cuts the x and y-axes.

For a quadratic graph given in the form y=a(x+b)(x+c)
1. How can you work out where the graph will cut the x-axis?
2. How can you work out where the graph will cut the y-axis?