Functions Flashcards

A relationship where each input has exactly one output.

Written as f(x), where f is the function and x is the input.

The set of all possible input values (x-values) for the function.

The set of all possible output values (y-values) for the function.

A quadratic function where the output is the square of the input.

A function that reverses the effect of the original function, written as f⁻¹(x).

A function made by combining two functions, written as f(g(x)).

A function of the form f(x) = mx + c, where m is the gradient and c is the y-intercept.

A function of the form f(x) = ax^2 + bx + c, where a, b, and c are constants.

A test to determine if a graph represents a function. If a vertical line crosses the graph more than once, it is not a function.