Master P101 STRENGTHEN Check P117 Extend P123 Test P127 5 Strengthen You will: • Strengthen your understanding with practice. Reflection, rotation and translation 1 Copy this shape on to squared paper. Draw the image of the shape after these translations. a 2 squares right, 3 squares up. Label this shape B. b 4 squares left, 1 square down. Label this shape C. Q1 hint Translate one vertex of the shape at a time. y 5 2 Describe the translation that takes: a A to B b A to C c A to D d A to E. B Q2 hint 3 2 1 25 24 23 22 21 0 21 22 C D 4 Draw in lines from matching vertices on A to B, and count the squares up and across. A 1 2 3 4 5 x E 23 Q3 hint 24 Join corresponding vertices of A and B. Mark the midpoint on the line. The mirror line goes through the midpoint. 25 3 In each diagram the red shape has been reflected in a mirror line. y y a b c x x i Copy each diagram and draw the mirror line. ii Write down the equation of the mirror line. B y y5x x 119 x Q4 hint Turn the book so the mirror line is vertical. Are the object and image the same distance from the mirror line? 4 Which of these diagrams shows an accurate reflection of the red rectangle in the line y = x? A y y C y y5x x y5x x