8.5G Card Sort (QSE Review)

Front

What is a function?

Back

A function is a relation where each input has exactly one output.

Front

What is the vertical line test?

Back

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

Front

What does it mean if a relation is not a function?

Back

It means that at least one input is associated with more than one output.

Front

Give an example of a function.

Back

The equation y = 2x + 3 is a function because for every x, there is one unique y.

Front

Give an example of a relation that is not a function.

Back

The relation {(1, 2), (1, 3)} is not a function because the input 1 has two different outputs.

Front

What is a domain in a function?

Back

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

Front

What is a range in a function?

Back

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

Front

What is a mapping diagram?

Back

A visual representation that shows how each element of the domain is paired with an element of the range.

Front

What is a linear function?

Back

A function that graphs to a straight line, typically in the form y = mx + b.

Front

What is a quadratic function?

Back

A function that can be expressed in the form y = ax^2 + bx + c, which graphs to a parabola.