Dilations on a Coordinate Plane

Multiple Choice

The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.

• reduction
• enlargement
• scale factor
• center of dilation

Multiple Choice

In a dilation what mathematical operation is used with the scale factor?

• addition 
• subtraction 
• multiplication 
• division 

Multiple Choice

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True
• False

Multiple Choice

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

Multiple Choice

What mathematical operation is used to find the scale factor?

• addition 
• subtraction 
• multiplication 
• division 

Multiple Choice

What is the formula for scale factor?

• $$\frac{new}{old}$$

• $$\frac{old}{new}$$

Multiple Choice

What letter is located at (6,7)?

• M
• N
• O
• P

Multiple Choice

What is coordinate R?

• (2,5)
• (0,1)
• (2,3)
• (1,0)

Multiple Choice

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

Multiple Choice

State the coordinate of the image of the given point G (-10,-6) under a dilation with center at the origin with the given scale factor of 1/2.

• G' (5,3)

• G' (20,12)

• G' (-20,-12)

• G' (-5,-3)

Multiple Choice

Which statement is true?

• It's a reduction; the scale factor is 2

• It's an enlargement; the scale factor is 2

• It's a reduction; the scale factor is $$\frac{1}{2}$$

• It's an enlargement; the scale factor is $$\frac{1}{2}$$

Multiple Choice

Quadrilateral ABCD was dilated with the origin as the center of dilation to create quadrilateral A'B'C'D'. Which rule best represents the dilation that was applied to quadrilateral ABCD to create quadrilateral A'B'C'D'?

Math Response

What is the Scale Factor?

Type answer here

Correct Answer: 3

Deg^°

Rad

Math Response

What is the Rule (not algebraic representation)?

(no spaces)

Type answer here

Correct Answer: \left(3x3y\right)

Deg^°

Rad

Multiple Choice

Enlargement or reduction?

• Enlargement

• Reduction

Math Response

What is the Scale Factor?

Type answer here

Correct Answer: \frac{2}{5}

Deg^°

Rad

Math Response

What is the Rule (not algebraic representation)?

(no spaces )

Don't forget there's a fraction button

Type answer here

Correct Answer: \left(\frac{2}{5}x\frac{2}{5}y\right)

Deg^°

Rad

Multiple Choice

Enlargement or reduction?

• Enlargement

• Reduction

Poll

How do you feel about Dilations on a Coordinate Plane?

• I'm ready for the independent practice!

• I ready for partner work

• I need to do small group with the teacher

• I need to come to tutorials