This notation represents the condition under which we want to evaluate the limit of a function. In this case, it means we are interested in finding what happens to the expression as x approaches 2.
Related terms
Approach: When we say 'as x approaches 2,' it means we consider values of x getting arbitrarily close to 2 without actually reaching it.
Left-hand Limit: The left-hand limit refers to evaluating how a function behaves as x approaches from values less than 2.
Right-hand Limit: The right-hand limit refers to evaluating how a function behaves as x approaches from values greater than 2.