This resource is from Underground Mathematics.
How many ways can you identify an equation for this parabola?
For hint to get you started, click below.
How might considering this diagram help?
What do you know about the red parabola?
What has the red parabola got to do with the blue one?
This is an Underground Mathematics resource.
Underground Mathematics is funded by a grant from the UK Department for Education and provides free web-based resources that support the teaching and learning of post-16 mathematics. It started in 2012 as the Cambridge Mathematics Education Project (CMEP).
Visit the site at undergroundmathematics.org to find more resources, which also offer suggestions, solutions and teacher notes to help with their use in the classroom.