Linear Functions and Systems of Equations Vocab

What is a function in terms of a relationship between two sets?

• A relationship where each input has exactly one output

• A set of ordered pairs

• A set of all possible input values

• A set of all possible output values

Define a relation in mathematical terms.

• A set of ordered pairs, but not necessarily a function

• A relationship where each input has exactly one output

• The set of all possible input values

• The set of all possible output values

What is the domain of a function?

• The set of all possible input values

• The set of all possible output values

• A relationship where each input has exactly one output

• A set of ordered pairs

What is the range of a function?

• The set of all possible output values

• The set of all possible input values

• A relationship where each input has exactly one output

• A set of ordered pairs

What is an independent variable?

• The variable that is manipulated or chosen freely

• The variable whose value depends on the independent variable

• The set of all possible input values

• The set of all possible output values

What is a dependent variable?

• The variable whose value depends on the independent variable

• The variable that is manipulated or chosen freely

• The set of all possible input values

• The set of all possible output values

Define rate of change.

• The change in the dependent variable divided by the change in the independent variable

• A rate of change that is the same between any two points on a linear function

• The ratio of the vertical change to the horizontal change

• The point where a line crosses the y-axis

What is a constant rate of change?

• A rate of change that is the same between any two points on a linear function

• The change in the dependent variable divided by the change in the independent variable

• The ratio of the vertical change to the horizontal change

• The point where a line crosses the y-axis

What is the slope of a line?

• The ratio of the vertical change to the horizontal change

• A rate of change that is the same between any two points on a linear function

• The change in the dependent variable divided by the change in the independent variable

• The point where a line crosses the y-axis

What is the y-intercept of a line?

• The point where a line crosses the y-axis

• The point where a line crosses the x-axis

• The ratio of the vertical change to the horizontal change

• A rate of change that is the same between any two points on a linear function