Limit Visualiser

Approach x = 2 from both sides and see the limit of f(x)

x = 1.9 → f(x) = ?
x = 1.99 → f(x) = ?
x = 1.999 → f(x) = ?
Limit = 4
The limit is the value f(x) approaches as x gets arbitrarily close to a point, regardless of f(a).