HM2: Unit 3 Vocabulary

A line that divides a parabola into 2 matching halves.

• Vertex

• Axis of Symmetry

• Maximum Point

• Parent Function

The lowest or highest point on the graph of a quadratic function.

• Maximum

• Axis of Symmetry

• Vertex

• Parent Function

The point where the graph crosses the y-axis.

• x-intercept

• axis of symmetry

• residual

• y-intercept

The difference between the actual value and the predicted value.

• residual

• vertex

• quadratic regression

• scatterplot

A graph of plotted points that shows the relationship between two data sets.

• residual plot

• scatterplot

• quadratic function

• vertex

When we have constant first differences, we use a ____ model.

• quadratic

• exponential

• linear

When we have constant second differences, we use a _____ model.

• quadratic

• exponential

• linear

When we have constant ratios of consecutive y-values, we us a ____model.

• quadratic

• exponential

• linear

• parent function

• vertical motion model

• horizontal motion graph

• initial height model

• initial height

• residual

• vertex

• initial velocity