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- 1. Multiple ChoiceA triangle has vertices with coordinates (2,0), (3, -1) and (-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 image?(5,3), (6,2), (1,-2)(6,0), (9,-3), (-6,-15)(2/3,0), (1,-1/3), (-2/3,-5/3)(-1,-3), (0,-4), (-5,-8)
- 2. Multiple ChoiceState 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.(5,3)(20,12)(-20,-12)(-5,-3)
- 3. Multiple Choice
Choose the correct scale factor:231/31/2 - 4. Multiple ChoiceThe point (8, 12) was dilated to become point (2, 3). What was the scale factor?½¼42
- 5. Multiple ChoiceDilate Point B by a scale factor of 3:(12,0)(12,12)(4,3)(0,12)
- 6. Multiple ChoiceDoes the image show a dilation?YesNo
- 7. Multiple ChoiceA dilation is which of the following:only an enlargementonly a reductionEither an enlargement or a reductionNeither an enlargement or a reduction
- 8. Multiple ChoiceWhich of the following is the algebraic representation for a dilation?(x, y) → (x, 3y)(x, y) → (3x, 3y)(x, y) → (x, y - 3)(x, y) → (.5x, .4y)
- 9. Multiple ChoiceDoes the image show a Dilation?YesNo
- 10. Multiple ChoiceA dilation produces a similar figureTrueFalse
- 11. Multiple ChoiceWhich of the following transformation will result in an image that is similar, but not congruent, to its original image?translationreflectionrotationdilatation
- 12. Multiple ChoiceUnder the dilatation with scale factor of 1/4, the transformed image is enlarged.TrueFalse
- 13. Multiple ChoiceA dilation is given by the transformation (x, y) → (2.5x, 2.5y). What is the scale factor?2.51/2.5This is not a dilationThe scale factor cannot be determined
- 14. Multiple ChoiceIn a dilation what mathematical operation is used with the scale factor?additionsubtractionmultiplicationdivision
- 15. Multiple ChoiceA scale factor of less than one meansthat the image will be larger than the pre-image.That the image will be the same as the pre-image.That you need to subtract that amount off of each side.That the image will be a reduction of the pre-image.
- 16. Multiple ChoiceWhat is the definition of dilations ,in mathematical terms?to make larger or smallerto make Congruent figuresall of the aboveto make smaller
- 17. Multiple ChoiceA dilation with a scale factor less than 1 but greater than 0 can produce a smaller figure. What is another word for smaller?reductionenlargementscale factorcenter of dilation
- 18. Multiple ChoiceA dilation can produce a larger figure or a(n)______reductionenlargementscale factorcenter of dilation
- 19. Multiple ChoiceSimilar figures have the same ______ but different ______.measure; shapessizes; shapesvalue; measuresshape; sizes
- 20. Multiple ChoiceThe __________ is the ratio of a length of the image to the corresponding length on the original figure.reductionenlargementscale factorcenter of dilation
- 21. Multiple ChoiceIf a dilation produces a congruent figure, then the scale factor was equal to _____.1/22101
- 22. Multiple ChoiceDefinition: The figure before a transformation has occurred.Pre-imageImageTranslationReflection
- 23. Multiple ChoiceFind the measure of x:6243336
- 24. Multiple ChoiceThe red triangle has been dilated by a scale factor of 1/4, which triangle is it's new image?green trianglered triangleblack trianglenone of these
- 25. Multiple ChoiceState the coordinate of the new image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.(5,3)(20,12)(-20,-12)(-5,-3)
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