F. Unit 3 - Support CFA Transformations

Front

What is the result of rotating a point (x, y) 180° about the origin?

Back

The new coordinates will be (-x, -y).

Front

How do you reflect a point (x, y) over the y-axis?

Back

The new coordinates will be (-x, y).

Front

What is the algebraic rule for translating a point (x, y) 9 units left and 3 units down?

Back

(x, y) --> (x - 9, y - 3).

Front

What are the new coordinates of point A(2, 3) after a 90° counterclockwise rotation about the origin?

Back

The new coordinates will be (-3, 2).

Front

If a triangle is reflected over the line x = -1, how do you find the new coordinates of a point?

Back

Subtract twice the distance from the line x = -1 from the x-coordinate of the point.

Front

What is the effect of a 90° clockwise rotation on a point (x, y)?

Back

The new coordinates will be (y, -x).

Front

How do you reflect a point (x, y) over the line y = k?

Back

The new coordinates will be (x, 2k - y).

Front

What happens to the coordinates of a point when it is translated 5 units up?

Back

The new coordinates will be (x, y + 5).

Front

What is the result of reflecting the point (2, -4) over the y-axis?

Back

The new coordinates will be (-2, -4).

Front

How do you perform a translation of a figure on a coordinate plane?

Back

Add or subtract values from the x and/or y coordinates of each point in the figure.