Unit 3 Review 8th Grade

Front

What is the domain of the function {(0,1), (1,-3), (2,-4), (-4,1)}?

Back

D: {0, 1, 2, -4}

Front

What is the range of the function {(0,1), (1,-3), (2,-4), (-4,1)}?

Back

R: {1, -3, -4}

Front

What are all the x values or inputs in a function called?

Back

Domain

Front

Which graph is not a function?

Back

Graph III

Front

What is a y-intercept in a graph?

Back

The y-coordinate where the graph intersects the y-axis.

Front

Does the table represent a function if there is a repeated x-value?

Back

No, there is a repeated x-value.

Front

What is the definition of a function?

Back

A relation where each input has exactly one output.

Front

What is the range of a function?

Back

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

Front

What is the difference between domain and range?

Back

Domain refers to input values (x-values), while range refers to output values (y-values).

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.