Geometry Coordinate Geometry & Transformations 5

Question 1

What is the slope of the line 4x - 2y = 8?

Accepted Answer

2

Answer

Rewrite as y = 2x - 4, so the slope is 2.

Question 2

A glide reflection combines a reflection with which other transformation?

Accepted Answer

Translation

Answer

A glide reflection is a reflection followed by a translation along the mirror line.

Question 3

The midpoint of a segment is (2, 2) and one endpoint is (0, 0). The other endpoint is?

Accepted Answer

(4, 4)

Answer

The other endpoint is twice the midpoint minus the known endpoint: (4, 4).

Question 4

Under a dilation centered at the origin with factor 1/2, point (8, 4) maps to?

Accepted Answer

(4, 2)

Answer

Multiply each coordinate by 1/2: (4, 2).

Question 5

Which transformation would turn a shape into a larger, similar shape?

Accepted Answer

Dilation with factor greater than 1

Answer

A dilation with a scale factor greater than 1 enlarges the figure while keeping it similar.

Geometry Practice Test