Choose the correct scale factor:
mt-6 sb-1-Dilationsimg_no 1.jpg
  • 2
  • 3
  • 1/3
  • 1/2
The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor?
  • ½
  • ¼
  • 4
  • 2
A dilation is which of the following: 
  • only an enlargement
  • only a reduction
  • Either an enlargement or a reduction
  • Neither an enlargement or a reduction
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)
When A(3, 6) is under a dilation of 2 what are the coordinates of A'?
  • (3, 6)
  • (1.5, 3)
  • (6, 12)
  • (12, 6)
A dilation produces a congruent figure
  • True
  • False
When a dilation has a scale factor greater than one, the dilation is an enlargement.
  • True
  • False
When the scale factor of a dilation is less than one, the dilation is a reduction.
  • True
  • False
In a dilation what mathematical operation is used with the scale factor?
  • addition 
  • subtraction 
  • multiplication 
  • division 
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
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)
Similar figures have the same ______ but different ______. 
  • measure; shapes
  • sizes; shapes
  • value; measures
  • shape; sizes
What is the scale factor from ABCD to MNOP?
mt-6 sb-1-Dilationsimg_no 2.jpg
  • 2/3
  • 3/2
  • 2
  • 3
If your SF = 0.8, what type of dilation is it?
  • Reduction
  • Enlargement
If your SF = 2.5, what type of dilation is it?
  • Reduction
  • Enlargement
If your SF = 6/5, what type of dilation is it?
  • Reduction
  • Enlargement
Dilate Point B by a scale factor of 3:
mt-6 sb-1-Dilationsimg_no 3.jpg
  • (12,0)
  • (12,12)
  • (4,3)
  • (0,12)
Does the image show a dilation?
mt-6 sb-1-Dilationsimg_no 4.jpg
  • Yes
  • No
Does the image show a Dilation?
mt-6 sb-1-Dilationsimg_no 5.jpg
  • Yes
  • No
Dilate Point B by a scale factor of 1/2
mt-6 sb-1-Dilationsimg_no 6.jpg
  • (1.5,-4)
  • (-1.5,1)
  • (-1,-1.5)
  • (-2,-2)
Did the image enlarge, reduce or none of the above?
mt-6 sb-5-Dilationsimg_no 1.jpg
  • Enlarge
  • Reduce
  • None of the above
Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?
mt-6 sb-5-Dilationsimg_no 2.jpg
  • Yes, enlarge
  • Yes, reduce
  • No
What scale factor was used to produce the image?
mt-6 sb-5-Dilationsimg_no 3.jpg
  • 2
  • 3
  • 1/3
  • 1/2
What scale factor was used to produce the image?
mt-6 sb-5-Dilationsimg_no 4.jpg
  • 1
  • 7
  • 18
  • 49
What scale factor was used to produce the image?
mt-6 sb-5-Dilationsimg_no 5.jpg
  • 2
  • -2
  • 1/2
  • 1
What scale factor was used to produce the image?
mt-6 sb-5-Dilationsimg_no 6.jpg
  • 2.5
  • 1.5
  • 3.5
  • 4
What are the coordinates for the center of dilation?
mt-6 sb-5-Dilationsimg_no 7.jpg
  • (3, 0)
  • (0, 0)
  • (3, 1)
  • (3, -2)
What are the coordinates for the center of dilation?
mt-6 sb-5-Dilationsimg_no 8.jpg
  • (0, 0)
  • (-3, -1)
  • (-12, 6)
  • (-3, -3)
Find the measure of x:
mt-6 sb-5-Dilationsimg_no 9.jpg
  • 6
  • 24
  • 33
  • 36
State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.
  • (5,3)
  • (20,12)
  • (-20,-12)
  • (-5,-3)
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 r = 2.
  • (2,4.5)
  • (-8,-18)
  • (8,18)
  • (9,4)
State the coordinates of the image of point C after a dilation with a scale factor of 1/2 and center point P.
mt-6 sb-5-Dilationsimg_no 10.jpg
  • (-6, 1)
  • (-3, -2)
  • (1, -6)
  • (-2, -3)
State the coordinates of the image of point B after a dilation with a scale factor of 2 and centered at point A.
mt-6 sb-5-Dilationsimg_no 11.jpg
  • (-4,2)
  • (-8,4)
  • (-4,6)
  • (-2,-2)
The red triangle has been dilated by a scale factor of 1/4 about the origin, which triangle is it's new image? 
mt-6 sb-5-Dilationsimg_no 12.jpg
  • green triangle 
  • red triangle 
  • black triangle
  • none of these 
Under a dilation, which scale factor will result in a congruent image?
  • -2
  • 0
  • 1
  • 1/2
A dilation produces a similar figure
  • True
  • False
When the scale factor of a dilation is less than one, the dilation is a reduction (gets smaller).
  • True
  • False
An image is dilated at a scale factor of 1.This means the dilation is an enlargement and the dilated image will be bigger.
  • True
  • False
Choose the correct scale factor:
mt-9 sb-9-Dilationsimg_no 52.jpg
  • 2
  • 3
  • 1/3
  • 1/2
Dilate Point B by a scale factor of 3:
mt-9 sb-9-Dilationsimg_no 53.jpg
  • (12,0)
  • (12,12)
  • (4,3)
  • (0,12)
Does the image show a dilation?
mt-9 sb-9-Dilationsimg_no 54.jpg
  • Yes
  • No
A dilation is which of the following:
  • an enlargement
  • a reduction
  • Either an enlargement or a reduction
  • Neither an enlargement or a reduction
Does the image show a Dilation?
mt-9 sb-9-Dilationsimg_no 55.jpg
  • Yes
  • No
Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?A(3,3) B(6,6) C(9,3)
  • A'(9,9) B'(18,18) C'(27,9)
  • A'(6,6) B'(9,9) C'(12,6)
  • A'(0,0) B'(3,3) C'(6,0)
  • A'(1,1) B'(2,2) C'(3,1)
Triangle ABC will be dilated by a scale factor of 1/ What will be the coordinates of C'?
mt-8 sb-10-Dilationsimg_no 220.jpg
  • (-1, -2.5)
  • (12, 6)
  • (3, -1.5)
  • (0, 1.5)
Enlargement or reduction?  Find the scale factor!
mt-8 sb-10-Dilationsimg_no 221.jpg
  • It's a reduction; the scale factor is 2.
  • It's an enlargement; the scale factor is 2.
  • It's an enlargement; the scale factor is 1/2.
  • It's a reduction; the scale factor is 1/2.
If the scale factor is greater than 1, the dilation is...
mt-8 sb-10-Dilationsimg_no 222.jpg
  • an enlargement
  • a rotation
  • a translation
  • a reduction
If the scale factor is less than 1, the dilation is...
mt-8 sb-10-Dilationsimg_no 223.jpg
  • an enlargement
  • a translation
  • a rotation
  • a reduction
Enlargement or reduction?  Find the scale factor!
mt-8 sb-10-Dilationsimg_no 224.jpg
  • It's an enlargement; the scale factor is 1/2.
  • It's an enlargement; the scale factor is 2.
  • It's a reduction; the scale factor is 1/2.
  • It's a reduction; the scale factor is 2.
Triangle ABC has vertices A (-2, 2), B (2, 4) and C (3, -1).  What are the coordinates of A' after a dilation by a scale factor of 2.5?
mt-8 sb-10-Dilationsimg_no 225.jpg
  • (-5, 5)
  • (5, -5)
  • (5, 10)
  • (7.5, -2.5)
Rectangle ABCD is dilated so that A' is located at (3, 6).  What could be the dilation rule?
mt-8 sb-10-Dilationsimg_no 226.jpg
  • (2x, 3y)
  • (2/3 x, 2/3 y)
  • (3/2 x, 3/2 y)
  • (x + 2, y + 3)
Rectangle ABCD is dilated so that the coordinates of C' are (2, -1).  What could be the dilation rule?
mt-8 sb-10-Dilationsimg_no 227.jpg
  • (-2x, +1y)
  • (1/2 x, 1/2 y)
  • (2x, 2y)
  • (x - 2, y - 1)
Quadrilateral RSTV is dilated so that the coordinates of S' are (3, 9).  What was the scale factor of the dilation?
mt-8 sb-10-Dilationsimg_no 228.jpg
  • 0.6
  • (1, 3)
  • 3/2
  • 3
Triangle ABC is dilated so that the coordinates of C' are (2, -1).  What was the scale factor of the dilation?
mt-8 sb-10-Dilationsimg_no 229.jpg
  • 3
  • 2
  • 1/2
  • 1/3
Which algebraic expression could be the rule for a reduction?
mt-8 sb-10-Dilationsimg_no 230.jpg
  • (x, y)→(2x, 2y)
  • (x, y)→(5/2 x, 5/2 y)
  • (x, y) →(0.5x, 0.5y)
  • (x, y)→(5x, 5y)
The algebraic expression for an enlargement by a scale factor of 3 is...
mt-8 sb-10-Dilationsimg_no 231.jpg
  • (x, y)→(3x, 3y)
  • (x, y)→(3, 3)
  • (3x, y)→(x, y)
  • (x, y)→(3x)
Triangle ABC will be dilated using the rule (x, y)→(2x, 2y).  What will be the coordinates of C'?
mt-8 sb-10-Dilationsimg_no 232.jpg
  • (12, -3)
  • (12, -6)
  • (3, -1.5)
  • (8, -5)
Polygon ABCDE will be dilated by a scale factor of Which statement is NOT true of the dilation?
mt-8 sb-10-Dilationsimg_no 233.jpg
  • The corresponding angles of the two polygons will be equal.
  • The dilation will be an enlargement.
  • The original and the image will be congruent.
  • Polygon A'B'C'D'E' will be proportional to polygon ABCDE. 
Enlargement or reduction?  Find the scale factor!
mt-8 sb-10-Dilationsimg_no 234.jpg
  • It's an enlargement; the scale factor is 3.
  • It's a reduction; the scale factor is 1/3.
  • It's a reduction; the scale factor is 1/2.
  • It's an enlargement; the scale factor is 2. 
Which could be the rule used to dilate ABC to A'B'C'?
mt-8 sb-10-Dilationsimg_no 235.jpg
  • (5x, 5y)
  • (3x, 3y)
  • (1/3 x, 1/3 y)
  • (2x, 2y)
Circle I is dilated to create Circle II.  Which could be the scale factor of the dilation?
mt-8 sb-10-Dilationsimg_no 236.jpg
  • 5
  • 3/8
  • 8
  • 8/3
Figure S is dilated to create Figure T.  Which could be the scale factor of the dilation?
mt-8 sb-10-Dilationsimg_no 237.jpg
  • (x, y)→(2x, 2y)
  • (x, y)→(1/2 x, 1/2 y)
  • (x, y)→(3x, 3y)
  • (x, y)→(4x, 6y)
Dilation rules use ______________ to change the ___________ of a shape. 
mt-8 sb-10-Dilationsimg_no 238.jpg
  • addition; location
  • division; direction
  • subtraction; orientation
  • multiplication; size
Enlargement or reduction?  Find the scale factor!
mt-8 sb-10-Dilationsimg_no 239.jpg
  • It's an enlargement; the scale factor is 2.
  • It's a reduction; the scale factor is 2/3.
  • It's an enlargement; the scale factor is 3/2.
  • It's a reduction; the scale factor is 3.

mt-10 sb-10-Dilationsimg_no 6.jpg
  • A
  • B
  • C
  • D
Which of the following is the algebraic representation for a dilation?
  • (x, y) → (x, 3y)
  • (x, y) → (3x, 3y)
  • (x, y) → (x, y - 3)
  • (x, y) → (.5x, .4y)

mt-10 sb-10-Dilationsimg_no 7.jpg
  • F
  • G
  • H
  • J

mt-10 sb-10-Dilationsimg_no 8.jpg
  • A
  • B
  • C
  • D

mt-10 sb-10-Dilationsimg_no 9.jpg
  • A
  • B
  • C
  • D

mt-10 sb-10-Dilationsimg_no 10.jpg
  • F
  • G
  • H
  • J

mt-10 sb-10-Dilationsimg_no 11.jpg
  • A
  • B
  • C
  • D
Rectangle ABCD has a length of 6 and a height ofIt is dilated by a scale factor of 3.What is true about the perimeter of A'B'C'D', the new rectangle?
  • The perimeter of A'B'C'D' is the same as the perimeter of ABCD
  • The perimeter of A'B'C'D' is the 3 times larger than the perimeter of ABCD
  • The perimeter of A'B'C'D' is the 6 times larger than the perimeter of ABCD
  • The perimeter of A'B'C'D' is the 9 times larger than the perimeter of ABCD
Jane's garden is a 2 ft x 3 ft rectangle. If she increases it by a scale factor of 3, what is the new area of her garden?
  • 72 square feet
  • 18 square feet
  • 36 square feet
  • 54 square feet
A rectangle is dilated by a scale factor ofWhat happens to the area?
  • doubles
  • triples
  • quadruples
  • not enough information
A dilation always produces a similar figure. Similar figures have the same ______ but different ______.
  • measure; shapes
  • sizes; shapes
  • value; measures
  • shape; sizes
A dilation always produces a congruent figure.
  • True
  • False
Did the image enlarge, reduce or none of the above?
mt-5 sb-6-Dilationsimg_no 137.jpg
  • Enlarge
  • Reduce
  • None of the above
Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?
mt-5 sb-6-Dilationsimg_no 138.jpg
  • Yes, enlarge
  • Yes, reduce
  • No
Under a dilation, which scale factor will result in a congruent image?
  • -2
  • 0
  • 1
  • 1/2
Choose the correct scale factor:
mt-4 sb-3-Dilationsimg_no 29.jpg
  • 2
  • 3
  • 1/3
  • 1/2
The point (8, 12) was dilated to become point (2, 3). What was the scale factor?
  • ½
  • ¼
  • 4
  • 2
Dilate Point B by a scale factor of 1/2
mt-4 sb-3-Dilationsimg_no 30.jpg
  • (1.5,-4)
  • (-1.5,1)
  • (-1,-1.5)
  • (-2,-2)
How do you write the algebraic notation when the scale factor is 3?
  • (x, y) goes to (1/3x, 1/3y)
  • (x, y) goes to (-3x, -3y)
  • (x, y) goes to (x + 3, y + 3)
  • (x, y) goes to (3x, 3y)
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