Practice (1)

Front

What is the equation for the total cost of a taxi ride that charges a $2 flat fee plus $0.75 per mile?

Back

t = 0.75n + 2

Front

What is the range of the function defined by the points (−5,−8), (0,8), (6,1), (−10,4)?

Back

{-8, 8, 1, 4}

Front

What is the domain of the relation represented by the points in the mapping?

Back

{−4, −1, 0, 2, 7}

Front

What does a negative linear graph look like when reading from left to right?

Back

The line draws down.

Front

What is a function in mathematics?

Back

A relation where each input has exactly one output.

Front

How do you determine if a table represents y as a function of x?

Back

Each x-value must correspond to only one y-value.

Front

What is the definition of 'range' in a function?

Back

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

Front

What is the definition of 'domain' in a function?

Back

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

Front

What does it mean for a function to be linear?

Back

It can be represented by a straight line on a graph.

Front

What is the slope of a line?

Back

The ratio of the rise (change in y) to the run (change in x).