Dilations Algebra Rule

Triangle ABC is dilated by a scale factor of 3. Which is an algebraic representation of the dilation? (8.3C)

• (3x, 3y) → (x, y)

• (x, y) → (x+3, y-3)

• (x, y) → (0.33x, 0.33y)

• (x, y) → (3x, 3y)

Tags

CCSS.8.G.A.3

A triangle has vertices J(−2, 9), K(2, −3), and L(−4, 5). The triangle is dilated so that vertex J′ has coordinates (-10, 45). Which algebraic representation represents the dilation? (8.10C)

• (x, y) → (5x, 5y)

• (x, 2y) → (2x, y)

• (x, y) → (4x, 4y)

• (8x, y) → (x, 8y)

Tags

CCSS.HSG.CO.A.2

Identify the scale factor. (8.CC)

• 1/8

• 8

• 2

• 1/2

Tags

CCSS.8.G.A.3

Which algebraic representation can be used to explain the scale factor used to create W'?

• (x, y) → (1.5x, 1.5y)

• (x, y) → (3x, 3y)

• (x, y) → (2x, 3y)

• (x, y) → (.5x, .5y)

Tags

CCSS.HSG.CO.A.2

What is the algebraic representation for this dilation?

• ( x , y ) --> ( 3/2 x , 3/2 y )

• ( x , y ) --> ( 1.5 x , 1.5 y )

• ( x , y ) --> ( 2/3 x , 2/3 y )

• ( x , y ) --> ( 0.33 x , 0.33 y )

Tags

CCSS.HSG.CO.A.2

What is the algebraic representation for this dilation?

• ( x , y ) --> ( 3/7 x , 3/7 y )

• ( x , y ) --> ( 7/3 x , 7/3 y )

• ( x , y ) --> ( 3x , 7y )

• ( x , y ) --> ( x +3 , y +7 )

Tags

CCSS.HSG.CO.A.2

Triangle A’B’C’ is the dilation of triangle ABC.
Which algebraic representation shows this dilation?

• (x, y) --> (1/2x, 1/2y)

• (x, y) --> (2x, 2y)

• (x, y) --> (x + 1/2, y)

• (x, y) --> (1/2x, y)

Tags

CCSS.HSG.CO.A.2

Which of the following algebraic rules represents a dilation?

• (x, y) --> (3x, 3y)

• (x, y) --> (3x, 2y)

• (x, y) --> (x - 3, y + 5)

• (x, y) --> (0.5x, 0.5y)

• (x, y) --> (3x, 0.5y)

Tags

CCSS.8.G.A.3

What is the algebraic representation for this dilation?

• ( x , y ) --> ( 2 x , 2 y )

• ( x , y ) --> ( x -2 , y -2 )

• ( x , y ) --> ( x +2 , y + 2 )

• ( x , y ) --> ( 1/2 x , 1/2 y )

Tags

CCSS.HSG.CO.A.2

What is the algebraic representation for this dilation?

• ( x , y ) --> ( 25 x , 25 y )

• ( x , y ) --> ( 0.25 x , 0.25 y )

• ( x , y ) --> ( 2.5 x , 2.5 y )

• ( x , y ) --> ( x , y )

Tags

CCSS.HSG.CO.A.2