Transformations Review

Determine the rule for a 90 CCW rotation

• (y, x)

• (-y, x)

• (-y, -x)

• (-x, y)

Determine the rule for a reflection over the line y = -x

• (y, x)

• (-y, x)

• (-y, -x)

• (y, -x)

Determine the rule for a 180 rotation

• (x, y)

• (-x, y)

• (x, -y)

• (-x, -y)

Determine the rule for a 270 CCW rotation

• (y, -x)

• (-y, x)

• (-y, -x)

• (-x, y)

A 90 CCW rotation is the same as...

• 90 CW rotation

• 270 CW rotation

• 180 rotation

A 270 CCW rotation is the same as...

• 90 CW rotation

• 270 CW rotation

• 180 rotation

Determine the algebraic notation for the translation of 4 units right and 8 units down

• (x-4, y+8)

• (x+4, y+8)

• (y+4, x-8)

• (x+4, y-8)

The vector notation <2, 4> tells you to translate the figure how...

• 2 units left, 4 units up

• 2 units up, 4 units right

• 2 units right, 4 units up

• 2 units right, 4 units down

What is the vector notation of the translation of 3 units right, 5 units down

• (x+3, y-5)

• <3, -5>

• <-3, 5>

• (x-3, y+5)

Determine the rule of a reflection over the y-axis

• (-x, y)

• (-x, -y)

• (x, -y)

• (y, -x)