Infinity, denoted as ∞, represents a value that is unbounded or limitless in magnitude. Plus infinity (+∞) signifies values that are larger than any finite number, while minus infinity (-∞) represents values that are smaller than any finite number.

L is the limit of the function f at the point a if: the output goes towards L as the input gets closer to a.

The output variable of a function, often named y

The input variable of a function, often named x

Mathagon

Limits of Functions Pointwise

Limits of Some Well-Known Functions

Limit at Plus or Minus Infinity

Limit of a Constant

Limit of c over x

An Introduction to Limits

Solve exercises about the input of functions approaching plus or minus infinity.