transformations may 9th

The coordinate grid shows a pentagon. The pentagon is translated 1 unit to the left and 10 units down to create a new pentagon.

Which rule describes this transformation?

• 
• 
• 
• 

The coordinate grid shows parallelogram PQRS.

Parallelogram PQRS is rotated 90° clockwise about the origin to create parallelogram P'Q'R'S′. Which rule describes this transformation?

• (x , y) --> (x, - y)

• (x , y) --> (- x, y)

• (x, y) --> (y, x)

• (x, y) --> (y, -x)

The coordinates of the vertices of a quadrilateral are P (1, 2), R (1, 4), S (3, 4), and T (4, 2).

Quadrilateral PRST is reflected across the y-axis to create quadrilateral P'R'S'T'. Which rule describes this transformation?

• (x , y) --> (x, -y)

• (x , y) --> (-x, y)

• (x, y) --> (y, -x)

• (x , y) --> (-y x)

Triangle ABC was translated 2 units to the right and 3 units down. Which rule describes the translation that was applied to triangle ABC to create triangle A'B'C'?

• (x, y) --> (x - 3, y + 2)

• (x, y) --> (x + 2, y - 3)

• (x , y) --> (2x, -3y)

• (x , y) --> ( -3x, 2y)

Reflect (-2, 5) over the x axis.

Think: What will change? the X or the Y?

• (-2, -5)

• (2, 5)

• (2, -5)

When you reflect a point over the Y axis, the ____________ changes.

• X coordinate

• Y coordinate

When you reflect a point over the X- axis, the _________ changes.

• X coordinate

• Y coordinate

Reflect (-2, 5) over the y axis.

Think: What will change? the X or the Y?

• (-2, -5)

• (2, 5)

• (2, -5)

An operation that moves or changes a geometric figure in some way to produce a new figure is called a

• transformer

• translator

• transitive

• transformation

If P is translated such that P(-3, 4) → P’(4, 0), what is the coordinate notation for the translation?

• (x, y) → (x + 7, y – 4)

• (x, y) →(x – 7, y + 4)

• (x, y) →(x – 4, y + 7)

• (x, y) →(x + 4, y + 7)