Big Ideas Geometry Chapter 4 Review

Front

Reflect the point A(2,7) over the line y = x. What are the coordinates of A'?

Back

A'(7,2)

Front

What transformations keep figures congruent?

Back

Translation, reflection, and rotation.

Front

If a shape is dilated by a scale factor of 2, what happens to its dimensions?

Back

The dimensions of the shape are doubled.

Front

Dilate the point B(4,5) by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of B'?

Back

B'(12,15)

Front

What is the scale factor if the preimage measures 5 units and the image measures 15 units?

Back

The scale factor is 3.

Front

Translate the point C(1,1) vertically 3 units and horizontally 2 units. Where is the new point located?

Back

(3,4)

Front

What is the result of reflecting the shape over the x-axis?

Back

The y-coordinates of the points are negated.

Front

If a triangle has vertices at A(1,2), B(3,4), and C(5,6), what are the coordinates after a translation of (2,3)?

Back

A'(3,5), B'(5,7), C'(7,9)

Front

What is the definition of dilation in geometry?

Back

Dilation is a transformation that alters the size of a figure but not its shape.

Front

If a figure is rotated 90 degrees counterclockwise about the origin, what happens to the coordinates (x,y)?

Back

The new coordinates will be (-y,x).