Unit 2 Vocabulary Test (Dean, Dixon, Jones, Baxter)

A coordinate system formed by the intersection of a horizontal number line, called the x-axis, and a vertical number line, called the y-axis.

• Coordinate Plane

• Cartesian Grid

• Polar Coordinates

• Number Line

The y-value within a function.

• Y-Coordinate

• X-Coordinate

• Slope

• Intercept

The set of x-values within the ordered pairs of a relation.

• Domain

• Range

• Codomain

• Image

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

• Function

• Relation

• Set

• Mapping

A line with zero slope; y=a

• Horizontal Line

• Vertical Line

• Diagonal Line

• Curved Line

The x-value within a function.

• X-Coordinate

• Y-Coordinate

• Z-Coordinate

• Slope

A function represented by a line; rate of change is constant.

• Linear Function

• Quadratic Function

• Exponential Function

• Logarithmic Function

A line that is decreasing from left to right.

• Negative Slope

• Positive Slope

• Zero Slope

• Undefined Slope

A function that cannot be represented by a line, but often is a curve; rate of change is NOT constant.

• Nonlinear Function

• Linear Function

• Constant Function

• Exponential Function

If the ratios of quantities are not equal, then they are not proportional.

• Non-proportional Relationship

• Proportional Relationship

• Inverse Relationship

• Direct Relationship