1) If triangle ABC was dilated by a scale factor of 3, with the origin as the center of dilation, what would the coordinates of B' be? a) (12,0) b) (12,12) c) (4,3) d) (0,12) 2) What is the correct scale factor for this dilation? a) 2.5 b) 1.5 c) 3.5 d) 4 3) A triangle has vertices with coordinates A(2,0), B(3, -1) and C(-2,-5). If the triangle is dilated by a scale factor of 3, with the origin as the center of dilation, what are the coordinates of the vertices of the new image? a) A'(5,3), B'(6,2), C'(1,-2) b) A'(6,0), B'(9,-3), C'(-6,-15) c) A'(2/3,0), B'(1,-1/3), C'(-2/3,-5/3) d) A'(-1,-3), B'(0,-4), C'(-5,-8) 4) If the scale factor is between zero and one, the new figure will be a) an enlargement b) bigger c) a reduction d) a scale factor 5) State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor k = 2. a) (2.4,5) b) (-8,-18) c) (8,18) d) (9,4) 6) State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2. a) (5,3) b) (20,12) c) (-20,-12) d) (-5,-3) 7) A dilation always produces a similar figure. Similar figures have the same ______ but different ______. a) shape; sizes b) sizes; shapes c) value; measures d) measure; shapes

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