Transformation Rules

Front

Which is a rule for a reflection over the y-axis?

Back

RULE (x, y) --> (−x, y)

Front

What is the rule for rotation of 270 degrees?

Back

RULE (x, y) --> (y, -x)

Front

Which is a rule for a reflection over the x-axis?

Back

RULE (x, y) --> (x, -y)

Front

Write a rule for the translation that moves a point up 2 units.

Back

(x, y) → (x, y + 2)

Front

Write a rule for the translation that moves a point right 2 units and down 1 unit.

Back

(x, y) → (x + 2, y - 1)

Front

What is the general rule for a reflection over the x-axis?

Back

RULE (x, y) --> (x, -y)

Front

What is the general rule for a reflection over the y-axis?

Back

RULE (x, y) --> (-x, y)

Front

What is the rule for a rotation of 90 degrees counterclockwise?

Back

RULE (x, y) --> (-y, x)

Front

What is the rule for a rotation of 180 degrees?

Back

RULE (x, y) --> (-x, -y)

Front

What is the rule for a translation that moves a point left 1 unit and up 3 units?

Back

(x, y) → (x - 1, y + 3)