A quadratic graph is produced when you have an equation of the form , where and can be zero but cannot be zero.
All quadratic graphs have a line of symmetry.
Positive quadratic graphs (where 0) are U-shaped and have a minimum turning point.
Negative quadratic graphs (where 0) are -shaped and have a maximum turning point.
Draw the graph of
First we need to complete a table of values:
Then plot these points and join them with a smooth curve.