Midterm Practice

Front

What is the equation that compares the number of red balloons (y) to the total number of balloons (x) if 2 out of every 5 balloons are red?

Back

y = 2/5x

Front

What is always true about a proportional relationship?

Back

A proportional relationship contains the point (0, 0).

Front

What type of graph represents a discrete function?

Back

A graph with distinct, unconnected points.

Front

Does the set of ordered pairs {(1, 7), (1, 6), (1, 5), (1, 4), (1, 3)} represent a function?

Back

No, because the input 1 has five outputs.

Front

Which line has the greatest rate of change when graphed?

Back

y = 5x

Front

Define a linear relationship.

Back

A relationship that can be represented by a straight line on a graph.

Front

What is a proportional relationship?

Back

A relationship where the ratio between two variables is constant.

Front

What does it mean for a relationship to be non-proportional?

Back

The ratio between the variables is not constant.

Front

What is the definition of a function?

Back

A relation where each input has exactly one output.

Front

What is the slope of a line?

Back

The rate of change of the line, representing how much y changes for a change in x.