Dilations | Baamboozle - Baamboozle | The Most Fun Classroom Games!

English 12 Public

This game reviews dilations in math: center of dilation, scale factor, naming coordinates

Study Slideshow

A dilation with a scale factor greater than 1 is called an __________

Enlargement

A dilation with a scale factor between 0 and 1 is called a ____________

Reduction

A triangle has points A(2,1), B(3,4) and C(5,2) and a center of dilation at (0,0). It is dilated by a scale factor of 2. What are the coordinates of C'?

(10,4)

What is the scale factor of this dilation?

A shape is dilated by a scale factor of 3. How can we represent this algebraically? (x,y) -----> (____,____)

(x,y) -----> (3x,3y)

A triangle is dilated by a scale factor of 1/2. How can we represent this algebraically? (x,y) ----> (_____,____)

(x,y) ----> (1/2x,1/2y)

What is the center of dilation in this image?

(0,0)

If this shape is dilated by a scale factor of 3 with a center of dilation at (0,0), what are the coordinates of C'?

(3,6)

What is the scale factor for this dilation?

S' is a dilation of S. Does this dilation have a scale factor greater than 1 or less than 1?

Greater than 1

If we wanted to figure out the center of dilation for two triangles, how could we find it?

Draw rays through each corresponding set of vertices and see where they intersect.

If you dilate DEF with a center of dilation at (0,0) and a scale factor of 1/2, what are the coordinates of D'?

(1,3)