Algebraic Translations

What is a reflection?

• When you turn an object around a point.

• When you slide an object form one place to another.

• When you flip or mirror an object across a line.

• When you resize an object.

What axis is the triangle being reflected over?

• X-axis

• Y-axis

Is the picture being reflected in the y-axis or x-axis?

• y-axis

• x-axis

What axis is the image reflected over?

• X-axis

• Y-axis

What axis is the image reflected over?

• X-axis

• Y-axis

If the point S(3, 7) is reflected across the y-axis, what will S' be?

• S'(3, 7)

• S'(-3, 7)

• S'(-3, -7)

• S'(3, 7)

Reflect the point (2, -4) over the y-axis.

• (-4, 2)

• (-2, 4)

• (-2, -4)

• (2, 4)

Reflect the point (2, -4) over the x-axis.

• (-4, 2)

• (-2, 4)

• (-2, -4)

• (2, 4)

If the point S(3, 7) is reflected across the x-axis, what will S' be?

• S'(3, -7)

• S'(-3, 7)

• S'(-3, -7)

• S'(3, 7)

Reflect the point (5, 9) over the x-axis.

• (-5, 9)

• (-5, -9)

• (5, -9)

• (5, 9)