Functions in mathematics are fundamental concepts used to describe the relationship between input values and output values. A function is a rule that assigns each input exactly one output. Functions can be represented in various forms, such as algebraic expressions, tables, graphs, or verbal descriptions. In function notation, an input value is typically denoted by 'x,' and the corresponding output value is denoted by 'f(x).' Functions can be linear, quadratic, exponential, trigonometric, or eve

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