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Name:_____________________________________ Date:_________________________

Practice: Reflecting Points in the Coordinate

Plane

Graph each point. Then reflect the point in the x-axis. Record the coordinates of

the reflection.

? A (1,3), Reflection: _____________

? B (-2,-2) Reflection: _____________

? C (-4,5) Reflection: _____________

? D (2, -5) Reflection: _____________

Graph each point. Then reflect the point in the y-axis. Record the coordinates of

the reflection.

? A (1,3), Reflection: _____________

? B (-2,-2) Reflection: _____________

? C (-4,5) Reflection: _____________

? D (2, -5) Reflection: ____________

Reflect each point in the x-axis and y-axis

Ordered Pair Reflection in the x-axis Reflection in the y-axis

(-12,13)

(4,-9)

(-10,-8)

? K. Coners, 2015 www.tothesquareinch.com

Name:_____________________________________ Date:___________A__n_s__w__e__r__K__e_ y

Reflecting Points in the Coordinate Plane

1. In your own words, describe what the word reflection means.

Answers will vary

2. You can reflect ordered pairs the x-axis and y-axis.

3. Another term for reflection is mirror image.

> B is a reflection

of A in the x - axis

wA

> D is a reflection

of C in the y- axis wB

wC wD

4. To reflect a point in the x-axis, the x-coordinate remains the same and

the y-coordinate is negated.

5. To reflect a point in the y-axis, the y-coordinate remains the same and

the x-coordinate is negated.

6. Graph (4,5) on the grid below. Then reflect it in the x-axis. What are the

coordinates of the reflection? (4,-5)

7. Graph (-2,-4) on the grid below. Then reflect it in the y-axis. What are

the coordinates of the reflection? (2,-4)

w(4,5)

w(-2,-4) w(2,-4)

w(4,-5)

? K. Coners, 2015 www.tothesquareinch.com

What is a line of reflection over x axis?Reflection over x-axis (line of reflection: x - axis) Summary: Reflection-flip in which image has opposite orientation Transformation- A change in position, shape or size of a geometric figure Point (x,y) reflects to point (x,-y) Reflection over x-axis (line of reflection: x - axis) Point (x,y) reflects to point (-x,y)

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