Give an equation of a implicit function and non-linear function.
An example of an implicit function could be:
x^2 + y^2 - 5 = 0
And an example of a non-linear function could be:
f(x) = x^3 + 2x^2 - 5x + 1
x^2 + y^2 - 5 = 0
And an example of a non-linear function could be:
f(x) = x^3 + 2x^2 - 5x + 1