Transformations and Dilations in Coordinate Geometry

These flashcards cover key vocabulary and concepts related to transformations and dilations in coordinate geometry, as discussed in the lecture notes.

Across x-axis transformation

Involves changing the sign of the y-coordinate of a point. For example, (4, 4) becomes (4, -4).

Across y-axis transformation

Involves changing the sign of the x-coordinate of a point. For example, (4, 4) becomes (-4, 4).

Across line y=x transformation

Involves swapping the x and y coordinates of a point. For example, (4, 5) becomes (5, 4).

Dilation Scale 2

A transformation where every coordinate of a point is multiplied by 2. For example, (4, 4) becomes (8, 8).

Dilation Scale 1/2

A transformation where every coordinate of a point is multiplied by 1/2. For example, (3, 5) becomes (1.5, 2.5).

Dilation Scale 1.5

A transformation where every coordinate of a point is multiplied by 1.5. For example, (3, 5) becomes (4.5, 7.5).