IM2 Unit 2 vocabulary

Front

horizontal shift

Back

Moves the graph of a function left or right on the coordinate plane, without changing its shape.

Front

line of reflection

Back

the “mirror line” that a shape flips across. Each point on the shape is the same distance from the line, just on the opposite side, like looking in a mirror.

Front

reflection

Back

a flip of a shape over a line, like looking in a mirror. The shape keeps the same size and form

Front

rigid transformation

Back

a move (shfit) or flip (reflection) of a shape that does not change its size or shape.

Front

Non-rigid

transformation

Back

A change to a shape that does not keep its exact size or angles. The figure gets bigger, smaller, or stretched

Front

Vertex

Back

The highest or lowest point on a parabola. It’s the point where the graph changes direction.

Front

Vertical shift

Back

Moves the graph of a function up or down without changing its shape.

Front

Vertex form

Back

• (h,k) is the vertex of the parabola.

• aaa tells whether it opens up or down and how “wide” or “narrow” it is.

Front

vertical stretch

Back

makes a graph look narrower (taller) by pulling it away from the x-axis.

Front

vertical compress

Back

makes a graph look wider (flatter) by pushing it closer to the x-axis.