Scale Factors can always be determines by which fraction

n e w ′ o l d \frac{new\ '}{old} o l d n e w ′

n e w o l d ′ \frac{new}{old\ '} o l d ′ n e w

o l d n e w ′ \frac{old}{new\ '} n e w ′ o l d

o l d ′ n e w \frac{old\ '}{new} n e w o l d ′

Scale Factors can always be determines by which fraction

n e w ′ o l d \frac{new\ '}{old} o l d n e w ′

n e w o l d ′ \frac{new}{old\ '} o l d ′ n e w

o l d n e w ′ \frac{old}{new\ '} n e w ′ o l d

o l d ′ n e w \frac{old\ '}{new} n e w o l d ′

Scale Factors can always be determines by which fraction

n e w ′ o l d \frac{new\ '}{old} o l d n e w ′

n e w o l d ′ \frac{new}{old\ '} o l d ′ n e w

o l d n e w ′ \frac{old}{new\ '} n e w ′ o l d

o l d ′ n e w \frac{old\ '}{new} n e w o l d ′

The scale factor of 1/3 creates an image that is

smaller because the old value is 3 and the new value is 1

larger because the old value is 3 and the new value is 1

larger because the old value is 1 and the new value is 3

smaller because the old value is 1 and the new value is 3

The scale factor of 3/8 creates an image that is

smaller because the old value is 8 and the new value is 3

larger because the old value is 8 and the new value is 3

larger because the old value is 3 and the new value is 8

smaller because the old value is 3 and the new value is 8

The scale factor of 9/5 creates an image that is

larger because the old value is 5 and the new value is 9

smaller because the old value is 5 and the new value is 9

larger because the old value is 9 and the new value is 5

smaller because the old value is 9 and the new value is 5

The scale factor of 4/7 creates an image that is

smaller because the old value is 7 and the new value is 4

larger because the old value is 7 and the new value is 4

larger because the old value is 4 and the new value is 7

smaller because the old value is 4 and the new value is 7

The scale factor of 4/3 creates an image that is

larger because the old value is 3 and the new value is 4

smaller because the old value is 3 and the new value is 4

larger because the old value is 4 and the new value is 3

smaller because the old value is 4 and the new value is 3

Which of the following will NOT preserve congruence?

( x , y ) → ( x + 3 , y + 3 )

Which of the following will NOT preserve congruence?

( x , y ) → ( x + ¾ , y + ¾ )

Which of the following will NOT preserve congruence?

( x , y ) → ( x - 2 , y + 6 )

If a dilation is represented by ( x , y ) → ( ax , ay ) Which statement is true

If a > 1 the image will become larger

If a > 1 the image will become smaller

If a > 1 the image will become congruent

Because its a dilation "a" cannot be greater than 1

If a dilation is represented by ( x , y ) → ( ax , ay ) Which statement is true

If a < 1 the image will become smaller

If a < 1 the image will become larger

If a < 1 the image will become congruent

Because its a dilation "a" cannot be less than 1

If a dilation is represented by ( x , y ) → ( ax , ay ) Which statement is true

In 8th grade, the scale factor "a" will never be negative

If a is negative the image will become larger

If a is negative the image will become smaller

If a is negative the image will become congruent

A shape is dilated with a scale factor of 2.8 times each dimension. Which statement is true.

The area of the shape is 7.84 times bigger.

The area of the shape is 5.6 times bigger.

The perimeter of the shape is 5.6 times bigger.

The perimeter of the shape is 7.84 times bigger.

A shape is dilated with a scale factor of 13 times each dimension. Which statement is true.

The perimeter of the shape is 13 times bigger.

The area of the shape is 13 times bigger.

The area of the shape is 26 times bigger.

The perimeter of the shape is 169 times bigger.

A shape is dilated with a scale factor of 7.5 times each dimension. Which statement is true.

The area of the shape is 56.25 times bigger.

The area of the shape is 7.5 times bigger.

The perimeter of the shape is 15 times bigger.

The perimeter of the shape is 56.25 times bigger.

Scale Factors can always be determines by which fraction

n e w ′ o l d \frac{new\ '}{old} o l d n e w ′

n e w o l d ′ \frac{new}{old\ '} o l d ′ n e w

o l d n e w ′ \frac{old}{new\ '} n e w ′ o l d

o l d ′ n e w \frac{old\ '}{new} n e w o l d ′

Scale Factors can always be determines by which fraction

n e w ′ o l d \frac{new\ '}{old} o l d n e w ′

n e w o l d ′ \frac{new}{old\ '} o l d ′ n e w

o l d n e w ′ \frac{old}{new\ '} n e w ′ o l d

o l d ′ n e w \frac{old\ '}{new} n e w o l d ′

Scale Factors can always be determines by which fraction

n e w ′ o l d \frac{new\ '}{old} o l d n e w ′

n e w o l d ′ \frac{new}{old\ '} o l d ′ n e w

o l d n e w ′ \frac{old}{new\ '} n e w ′ o l d

o l d ′ n e w \frac{old\ '}{new} n e w o l d ′

Given that Δ A B C ∼ Δ F E D \Delta ABC\sim\Delta FED Δ A B C ∼ Δ F E D which proportion must be true?

A B F E = C A D F \frac{AB}{FE}=\frac{CA}{DF} F E A B = D F C A

C B F E = C A D F \frac{CB}{FE}=\frac{CA}{DF} F E C B = D F C A

A B F E = C B E D \frac{AB}{FE}=\frac{CB}{ED} F E A B = E D C B

B C F D = C A D E \frac{BC}{FD}=\frac{CA}{DE} F D B C = D E C A

Which proportion is true?

L M P Q = N O R S \frac{LM}{PQ}=\frac{NO}{RS} P Q L M = R S N O

L M R S = N O P Q \frac{LM}{RS}=\frac{NO}{PQ} R S L M = P Q N O

N M Q P = L O R P \frac{NM}{QP}=\frac{LO}{RP} Q P N M = R P L O

L M P Q = M O S R \frac{LM}{PQ}=\frac{MO}{SR} P Q L M = S R M O

(x,y) → ( 3x , 3y )

The image will be larger because the scale factor is greater than 1.

The image will be larger because the scale factor is less than 1.

The image will be smaller because the scale factor is greater than 1.

The image will be smaller because the scale factor is less than 1.

(x,y) → ( ⅝x , ⅝y )

The image will be smaller because the scale factor is less than 1.

The image will be larger because the scale factor is greater than 1.

The image will be larger because the scale factor is less than 1.

The image will be smaller because the scale factor is greater than 1.

(x,y) → ( 1.4x , 1.4y )

The image will be larger because the scale factor is greater than 1.

The image will be larger because the scale factor is less than 1.

The image will be smaller because the scale factor is greater than 1.

The image will be smaller because the scale factor is less than 1.

(x,y) → ( 0.3x , 0.3y )

The image will be smaller because the scale factor is less than 1.

The image will be larger because the scale factor is greater than 1.

The image will be larger because the scale factor is less than 1.

The image will be smaller because the scale factor is greater than 1.

Dilations Practice

Authored by Darrin McWilliams

Mathematics

8th Grade

CCSS covered

Used 8+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x,y) → ( 1.2x , 1.2y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x,y) → ( ⅔x , ⅔y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x,y) → ( 0.2x , 0.2y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x,y) → ( 7x , 7y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x,y) → ( ⅙x , ⅙y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x , y ) -> ( 3/2x , 3/2y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(x , y ) -> ( 0.5x , 0.5y )

The scale factor is greater than 1 so the image will be bigger.

The scale factor is between 0 and 1 so the image will be bigger.

The scale factor is greater than 1 so the image will be smaller.

The scale factor is between 0 and 1 so the image will be smaller.

Tags

CCSS.HSG.SRT.A.1

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Dilations Practice

(x,y) → ( 1.2x , 1.2y )

(x,y) → ( ⅔x , ⅔y )

(x,y) → ( 0.2x , 0.2y )

(x,y) → ( 7x , 7y )

(x,y) → ( ⅙x , ⅙y )

(x , y ) -> ( 3/2x , 3/2y )

(x , y ) -> ( 0.5x , 0.5y )

(x , y ) -> ( 4x , 4y )

(x , y ) -> ( 0.75x , 0.75y )

(x , y ) -> ( 12x , 12y )

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