Functions

Front

What is a function?

Back

A function is a relationship between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

What is the function rule for the output when the input is 5 in the function rule 4x?

Back

The output is 20.

Front

What does the equation y = 2x - 3 represent?

Back

It represents a linear function where the slope is 2 and the y-intercept is -3.

Front

If the function rule is 2x + 1, what is the output when the input is 2?

Back

The output is 5.

Front

What is the output of the function rule 4x when the input is 5?

Back

The output is 20.

Front

How do you determine if a graph represents a function?

Back

A graph represents a function if any vertical line drawn intersects the graph at most once.

Front

What is the output of the function rule 2x + 1 when the input is 2?

Back

The output is 5.

Front

What is the missing output value if the options are -2, 3, 9, -7?

Back

The missing output value is 9.

Front

What is the definition of a linear function?

Back

A linear function is a function that graphs to a straight line and can be expressed in the form y = mx + b.

Front

What does the term 'input' refer to in a function?

Back

The input is the value you provide to a function to get an output.