Practice the questions given in the worksheet on reflection in x-axis. The questions are based on how to find the co-ordinates of the image of a point under reflection in x-axis.
1. Find the reflection of the following in x-axis.
(i) (-2, -6)
(ii) (1, 7)
(iii) (-3, 1)
(iv) (5, -9)
(v) (2, -2)
2. Draw a quadrilateral ABCD where A (1, 1); B (1, 4); C (3, 3) and D (3, 2). Now reflect the quadrilateral in x-axis. Write down the co-ordinates of A'B'C'D'.
3. Find the co-ordinates of the following point when
reflected in x-axis.
(i) P (3, 7)
(ii) Q (2, -5)
(iii) R (-3, 1)
(iv) S (-7, -4)
4. Draw a triangle ABC on the graph paper whose co-ordinates are A (-2, 5), B (-3, -1), C (-1, 2) and reflect this triangle in x-axis to ∆A'B'C'. Find the co-ordinates of the vertices of the triangle A'B'C'.
5. Draw the image of the line segment AB reflected in x-axis whose co-ordinates are A (-2, 3) and B (3, 4).
Answers for the worksheet on reflection in x-axis are given below to check the exact answers of the above questions on reflection of a point in the x-axis.
Answers:
1. (i) (-2, 6)
(ii) (1, -7)
(iii) (-3, -1)
(iv) (5, 9)
(v) (2, 2)
2. A' (1, -1); B' (1, -4); C' (3, -3) and D' (3, -2)
3. (i) P' (3, -7)
(ii) Q' (2, 5)
(iii) R' (-3, -1)
(iv) S' (-7, 4)
4. A' (-2, -5), B' (-3, 1), C' (-1, -2)
5. A' (-2, -3) and B' (3, -4)
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