Create a free account now and get 3 full lessons, completely free. Get my 3 free lessons

Practise online insteadThe answer key prints on page 2.

Reflect a triangle in an axis: find the image of a vertex

Year 8 maths · Fieldbook Learning

Name ______________________ Date __________

Apply the reflection rule to the vertex you need.

  1. Triangle ABC has vertices A(6, 2), B(6, −3) and C(5, −1). It is reflected: reflection in the y-axis. What are the coordinates of B'?
  2. Triangle ABC has vertices A(4, −1), B(−3, 1) and C(3, −1). It is reflected: reflection in the y-axis. What are the coordinates of C'?
  3. Triangle ABC has vertices A(−2, 4), B(−3, −5) and C(2, 1). It is reflected: reflection in the x-axis. What are the coordinates of C'?
  4. Triangle ABC has vertices A(−4, 6), B(3, −2) and C(−4, 5). It is reflected: reflection in the y-axis. What are the coordinates of C'?
  5. Triangle ABC has vertices A(−1, −8), B(−6, −1) and C(−8, 4). It is reflected: reflection in the y-axis. What are the coordinates of B'?
  6. Triangle ABC has vertices A(−4, −1), B(−4, −7) and C(3, −5). It is reflected: reflection in the y-axis. What are the coordinates of B'?
  7. Triangle ABC has vertices A(−2, 4), B(4, −6) and C(1, 4). It is reflected: reflection in the x-axis. What are the coordinates of B'?
  8. Triangle ABC has vertices A(3, 2), B(−3, −6) and C(−1, 3). It is reflected: reflection in the x-axis. What are the coordinates of A'?
  9. Triangle ABC has vertices A(7, −1), B(−4, −7) and C(4, −1). It is reflected: reflection in the x-axis. What are the coordinates of A'?
  10. Triangle ABC has vertices A(1, 4), B(9, −8) and C(−7, 6). It is reflected: reflection in the y-axis. What are the coordinates of C'?
  11. Triangle ABC has vertices A(3, 6), B(−2, −8) and C(−10, 7). It is reflected: reflection in the y-axis. What are the coordinates of B'?
  12. Triangle ABC has vertices A(−5, −2), B(1, −3) and C(3, 2). It is reflected: reflection in the x-axis. What are the coordinates of C'?
  13. Triangle ABC has vertices A(−4, 9), B(−2, −9) and C(−11, −12). It is reflected: reflection in the x-axis. What are the coordinates of C'?
  14. Triangle ABC has vertices A(8, 5), B(−2, −11) and C(−12, −7). It is reflected: reflection in the x-axis. What are the coordinates of B'?
  15. Triangle ABC has vertices A(−4, 10), B(−7, 6) and C(−7, 5). It is reflected: reflection in the y-axis. What are the coordinates of B'?
  16. Triangle ABC has vertices A(−9, 6), B(5, 1) and C(2, −11). It is reflected: reflection in the x-axis. What are the coordinates of A'?
  17. Triangle ABC has vertices A(−2, 3), B(5, 13) and C(4, −10). It is reflected: reflection in the x-axis. What are the coordinates of A'?
  18. Triangle ABC has vertices A(2, 7), B(−5, 7) and C(−1, −14). It is reflected: reflection in the x-axis. What are the coordinates of B'?
  19. Triangle ABC has vertices A(−12, −1), B(8, −9) and C(−10, −9). It is reflected: reflection in the y-axis. What are the coordinates of A'?
  20. Triangle ABC has vertices A(−11, 10), B(8, −14) and C(2, −3). It is reflected: reflection in the x-axis. What are the coordinates of C'?
More free practice: fieldbooklearning.com/au/practice/year-8/reflect-a-triangle-in-an-axis-find-the-image-of-a-vertex/

Answer key: Reflect a triangle in an axis: find the image of a vertex

  1. (-6, -3)
  2. (-3, -1)
  3. (2, -1)
  4. (4, 5)
  5. (6, -1)
  6. (4, -7)
  7. (4, 6)
  8. (3, -2)
  9. (7, 1)
  10. (7, 6)
  11. (2, -8)
  12. (3, -2)
  13. (-11, 12)
  14. (-2, 11)
  15. (7, 6)
  16. (-9, -6)
  17. (-2, -3)
  18. (-5, -7)
  19. (12, -1)
  20. (2, 3)