dilations and transformations

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees cw around the origin

• Rotate 90 degrees cw around the origin and then translate down.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up and then rotate 90 degrees ccw about the origin.

Tags

CCSS.8.G.A.3

Which rule shows the transformation?

• (x, y) ----> (0.5x, 0.5y)
• (x, y) ----> ( 2 + x, 2 + y)
• (x, y) -----> (2x, 2y)
• (x, y) -----> (3x, 3y)

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.5

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

Tags

CCSS.8.G.A.3

What is the sequence of transformations?

• Reflect over the y then reflect over the x
• Reflect over the x then reflect over the y
• Translate 4 units then rotate 90˚
• Rotate 90˚ then reflect over the x

Tags

CCSS.8.G.A.3

(2, 6) -- Translate up 3, left 1 and rotate 180°

• (-1,-9)

• (1, -9)

• (5,5)

• (-5,5)

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

CCSS.HSG.CO.A.5

CCSS.HSG.CO.B.6

(-3, -1) -- Reflect across the line y=x and translate down 1.

• (-1, -4)

• (-1, -2)

• (3, 0)

• (-2, -3)

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

CCSS.HSG.CO.A.5

CCSS.HSG.CO.B.6

Choose the correct transformations

• rotate 90 degrees counter-clockwise around the origin, and then reflect over the x-axis

• right 1, down 4, and then reflection over the y-axis

• right 6, and then reflection over the x-axis

• reflection over the line y=x, and then translate up 4, right 2

Tags

CCSS.8.G.A.3

How is trapezoid ABCD translated to trapezoid A'B'C'D'?

• (x + 5, y - 5) 5 units down and 5 units to the right
• (x + 1, y - 5) 5 units down and 1 to the right
• (x + 5, y - 8) 8 units down and 5 units to the right
• (x + 4, y - 5) 5 units down and 4 units to the right

Tags

CCSS.HSG.CO.A.2

What does a translation do to an image?

• Turns it 90* clockwise
• Mirrors it
• Shrinks it
• Slides it

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

CCSS.HSG.CO.A.5

CCSS.HSG.CO.B.6

Reflections over the x-axis change the ____-__________. 

• y-coordinate
• x-coordinate
• y-axis
• x-axis 

Tags

CCSS.HSG.CO.A.2

CCSS.HSG.CO.A.4

CCSS.HSG.CO.B.6