Year 5

# Reflecting shapes across the x axis and the y axis

Year 5

# Reflecting shapes across the x axis and the y axis

## Slide deck

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## Lesson details

### Key learning points

- In this lesson, we will reflect shapes across all 4 quadrants using coordinates.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

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### 5 Questions

Q1.

Which of the following statements is correct?

The line of reflection is always horizontal

The line of reflection is always parallel with the x axis

The line of reflection is always vertical

Q2.

If we are reflecting a shape onto a vertical line of symmetry then which of the following statements is correct?

Both the x and y coordinates of the reflected shapes will change

Both the x and y coordinates of the reflected shapes will stay the same

Only the x coordinate will stay the same

Q3.

If we are reflecting a shape onto a horizontal line of symmetry then which of the following statements is correct?

Both the x and y coordinates of the reflected shapes will change

Both the x and y coordinates of the reflected shapes will stay the same

Only the y coordinate will stay the same

Q4.

If a shape is reflected across a horizontal line of reflection and one of the vertices of this shape with the co-ordinate (-4,6) is just 2 squares away from the line of reflection what would it's reflected coordinate be?

(-2, 6)

(-2, 8)

(4, -6)

Q5.

If a square is reflected across a horizontal line of symmetry where A (-6,7) reflects to ( -6,1) and B(-3,7) reflects to (-3,1), what are the reflected points of C and D?

(-3,7) and (-3,2)

(-6,3) and (-3,4)

(-6,4) and (-4,3)

### 5 Questions

Q1.

Which of the following statements is NOT correct?

The x axis can be a line of reflection

The y axis can be a line of reflection

When shapes are reflected some of the coordinates can change

Q2.

If we are reflecting a shape onto the x axis then which of the following is correct?

Both the x and y coordinates of the reflected shapes must change

Both the x and y coordinates of the reflected shapes must stay the same

The y coordinate will definitely stay the same

Q3.

If we are reflecting a shape onto the y axis then which of the following statements is correct?

Both the x and y coordinates of the reflected shapes must change

Both the x and y coordinates of the reflected shapes must stay the same

The x coordinate will definitely stay the same

Q4.

A triangle with the coordinates (-5,6), (-5,7) and (-4,7) is reflected by a line of reflection along the y axis, which of the below are the correct reflected coordinates?

(-5,-5) (-7,7) (-4,-4)

(-5,-6), (-5,-7) (-4,-7)

(5,-6) (5,-7) (4,-7)

Q5.

A point with coordinates (-4,0) is reflected by a line of reflection along the x axis, what would its new reflected coordinates be?

(-4,-1)

(-4,1)

(4,0)