Final Exam

Front

What is a function?

Back

A relation that maps every domain value to exactly one range value.

Front

Which mapping diagram is not a function?

Back

A mapping diagram where at least one domain value maps to multiple range values.

Front

What are the x and y intercepts of the graph?

Back

The x-intercept is the point where the graph crosses the x-axis, and the y-intercept is where it crosses the y-axis.

Front

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Back

Domain: {-4, 0, 1, 2}; Range: {-4, -3, 1}.

Front

What is the x-intercept of a graph?

Back

The x-intercept is the value of x when y equals zero.

Front

What is the y-intercept of a graph?

Back

The y-intercept is the value of y when x equals zero.

Front

How can you determine if a graph represents a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

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

Front

What does it mean for a relation to be a function?

Back

Each input (x-value) must correspond to exactly one output (y-value).