Worksheet: Coordinate plane: reflecting points | Negative numbers | 6th grade | Khan Academy
Comprehension worksheet generated from the video "Coordinate plane: reflecting points | Negative numbers | 6th grade | Khan Academy".
Worksheet: Coordinate plane: reflecting points | Negative numbers | 6th grade | Khan Academy
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Vocabulary
- x-axis — The horizontal number line in a coordinate plane.
- y-axis — The vertical number line in a coordinate plane.
- Ordered pair — A pair of numbers, , that indicates the position of a point on a coordinate plane.
- Reflection — A transformation that flips a figure over a line (the axis of reflection), creating a mirror image.
- x-coordinate — The first number in an ordered pair, representing the horizontal distance from the y-axis.
- y-coordinate — The second number in an ordered pair, representing the vertical distance from the x-axis.
Questions
Watch the video and answer the following questions based on the information presented.
1.
In the first example (0:00-0:15), the video asks to plot the point . What are the x-coordinate and y-coordinate of this point?
2.
In the second example (1:16-1:30), the video asks to plot the point . How many units to the left of the y-axis and how many units below the x-axis is this point?
3.
Based on the first example (0:00-1:15), the point is reflected across the y-axis. What is the ordered pair of its reflection?
4.
In the third example (2:20-3:35), the narrator states point A is and visually plots point B at . Point B is a reflection of point A across which axis or axes?
5.
Imagine you are designing a simple video game where objects move and reflect off walls. How would understanding reflections across the x-axis and y-axis help you program an object to bounce off a horizontal or vertical wall?
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