Point A is at (3, -2). Write down the coordinates of point A.
(1)
2
A point B is at (-4, 5). What is the x-coordinate of B?
(1)
3
Plot point C at (2, 3) and point D at (-1, 3) on a set of axes. What is the distance between C and D along the horizontal direction?
(2)
4
Triangle T has vertices at (1, 1), (4, 1) and (1, 4). Translate triangle T by the vector (2, -3). Write the coordinates of the image triangle T'.
(2)
5
Point E is at (-3, -4). Translate E by the vector (5, 0). What are the coordinates of the new point?
(1)
6
Reflect point F at (6, 2) in the x-axis. What are the coordinates of the reflected point F'?
(1)
7
Reflect point G at (-2, 5) in the line y = x. What are the coordinates of G' after the reflection?
(2)
8
A pentagon P has vertices at (2, 1), (4, 1), (5, 3), (3, 5) and (1, 3). First translate the pentagon by (-3, 2). Then reflect the translated pentagon in the y-axis. Give the coordinates of the final image.
(3)
9
Points H(1, 2) and J(1, -4) are plotted. What is the length of HJ?
(2)
10
Shape A is a square with corners at (-1, -1), (1, -1), (1, 1) and (-1, 1). Shape B is the image of shape A after a reflection in the y-axis. Explain your answer by giving the coordinates of shape B and stating the rule for the reflection.
(2)
11
Find the midpoint of the line joining K(-6, 4) and L(2, -2).
(2)
12
Point M at (0, -3) is translated by the vector ( -4, 6 ). What are the coordinates of M'?
(2)
13
Quadrilateral Q has vertices at (2, -1), (5, -1), (5, 2) and (2, 2). Reflect Q in the x-axis. Give the coordinates of the image Q'.
(2)
14
Point N lies on the y-axis at (0, 4). Explain why a reflection of N in the y-axis maps N to itself.
(2)
15
Find the vector that maps P(-3, 2) to Q(4, -1).
(2)
16
A rectangle R has vertices at (-2, 0), (2, 0), (2, 3) and (-2, 3). First translate R by (1, -2). Then translate the result by (-3, 4). Give the coordinates of the final rectangle.
(2)
17
The line x = 1 is a line of reflection. Point S at (3, -2) is reflected in the line x = 1. What are the coordinates of S'?
(2)
18
Challenge: A triangle has vertices at A(0, 0), B(3, 0) and C(1, 2). It is translated by the vector (2, 1) then reflected in the x-axis. Give the coordinates of the final image and explain each step briefly.
(3)
Mark scheme · KS2.M-Y6G2 Geometry: Coordinates and Transformations
Question 1
B1 (3, -2) cao
Answer: (3, -2)
Question 2
B1 -4 cao
Answer: -4
Question 3
M1 Find horizontal difference, 2 - (-1) or |-1 to 2| seen
B1 3 cao
Answer: 3
Question 4
M1 Add vector to at least one vertex correctly, showing translation method
B1 T' vertices (3, -2), (6, -2), (3, 1) cao
Answer: (3, -2), (6, -2), (3, 1)
Question 5
B1 (2, -4) cao
Answer: (2, -4)
Question 6
B1 (6, -2) cao
Answer: (6, -2)
Question 7
M1 Swap x and y as part of reflection in y = x
B1 (5, -2) cao
Answer: (5, -2)
Question 8
M1 Perform translation (-3, 2) correctly on at least one vertex
M1 Reflect translated coordinates in y-axis correctly (sign change of x) for at least one vertex
B1 Final vertices correctly given as (1, 3) -> after translation (-1, 3) reflect (1, 3); (4,1)->(1,3)->(-1,3) etc or full correct set cao
Answer: (1, 3), (-1, 3), (-2, 5), (0, 7), (2, 5)
Question 9
M1 Find vertical difference: 2 - (-4) or |2 to -4| = 6
B1 6 cao
Answer: 6
Question 10
M1 Give coordinates after reflection in y-axis for at least two corners or state x changes sign
B1 Full set (-1,-1)->(1,-1), (1,-1)->(-1,-1), (1,1)->(-1,1), (-1,1)->(1,1) and rule x becomes -x cao
Answer: B corners (1, -1), (-1, -1), (-1, 1), (1, 1); rule: (x, y) -> (-x, y) for reflection in the y-axis
Question 11
M1 Find midpoint x as (-6 + 2)/2 = -2 and y as (4 + -2)/2 = 1
B1 (-2, 1) cao
Answer: (-2, 1)
Question 12
M1 Add vector: 0 + (-4) and -3 + 6
B1 (-4, 3) cao
Answer: (-4, 3)
Question 13
M1 Change sign of y for at least two vertices
B1 (2,1), (5,1), (5,-2), (2,-2) cao
Answer: (2, 1), (5, 1), (5, -2), (2, -2)
Question 14
M1 State that reflecting in y-axis changes x to -x
B1 Conclude (0, 4) -> (-0, 4) which is same point so it maps to itself cao
Answer: (0, 4) maps to (-0, 4) which is (0, 4); x becomes -x so 0 stays 0
Question 15
M1 Compute change in x: 4 - (-3) = 7 and change in y: -1 - 2 = -3