Let's practise

Write the coordinates of each vertex of the triangle.

A ( , )
B ( , )
C ( , )

  • Read the question and then read it again. What is it asking you to do?
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It is asking you to describe the position of each vertex of the triangle as x and y coordinates.

  • Start with vertex A.
    You need to give its coordinates. From zero, find how far along the x axis vertex A is positioned. Then find out how far along the y axis it is.
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It is 2 along the x axis and 3 up the y axis.
The coordinate is (2,3).

  • Now, repeat for vertex B.
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It is 5 along the x axis and 8 up the y axis.
The coordinate is (5,8).

  • And finally, vertex C.
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It is 8 along the x axis and 5 up the y axis.
The coordinate is (8,5).

  • What is your answer?
    Check your working. Have you given the x coordinate first each time?
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A (2,3)
B (5,8)
C (8,5)