Free taster
5 of 6 sections open
Above or Below the Curve?
Above or Below the Curve?
A parabola divides the x-axis into regions. Where is y > 0? Where is y < 0? Solving quadratic inequalities is about finding which x-values make the quadratic positive or negative.
Now try it yourself
Quiz · Question 1 of 10
For a positive (U-shaped) parabola with roots at x = 2 and x = 5, the expression is negative (below the x-axis) for which values of x?
Tap an answer to check it
This topic in real past papers
Every real exam question we've found on quadratic inequalities, with a full worked answer.