You may also like

problem icon

Real(ly) Numbers

If x, y and z are real numbers such that: x + y + z = 5 and xy + yz + zx = 3. What is the largest value that any of the numbers can have?

problem icon

How Many Solutions?

Find all the solutions to the this equation.

problem icon

After Thought

Which is larger cos(sin x) or sin(cos x) ? Does this depend on x ?

Curve Match

Stage: 5 Challenge Level: Challenge Level:1
The green graph should be straightforward to identify.
A little bit of numerical detective work should help you to identify which axis is which.