Functions and Linear Relationships Dictionary

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Which type of function is represented by a line with a constant rate of change?

• Nonlinear function

• Proportional relationship

• Linear function

• Direct variation

What is a relation in the context of functions?

• A set of unordered pairs.

• A set of ordered pairs.

• A mathematical operation.

• A type of function.

What defines a function in terms of domain and range?

• A relation in which each element of the range is paired with exactly one element of the domain.

• A relation in which each element of the domain is paired with more than one element of the range.

• A relation in which each element of the domain is paired with exactly one element of the range.

• A relation in which elements of the domain and range are randomly paired.

What is the independent variable in a function?

• The y-value within a function.

• The variable that depends on another variable.

• The x-value within a function.

• The constant term in a function.

What does the vertical line test determine?

• Whether a graph represents a function or not.

• Whether a function is increasing or decreasing.

• Whether a function has a positive or negative slope.

• Whether a function is linear or non-linear.

What is the rate of change in the context of functions?

• A ratio that shows how one variable changes with respect to another.

• The maximum value a function can reach.

• The difference between the highest and lowest values of a function.

• The speed at which a function graph crosses the axes.

What is the slope of a line that is increasing from left to right?

• Negative slope

• Zero slope

• Undefined slope

• Positive slope