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anonymous

  • one year ago

Which are the coordinates of the vertices of the reflected figure when triangle DEF is reflected across the y-axis? http://static.k12.com/calms_media/media/802500_803000/802650/2/574aec4b20e650818569f5a471d2e7d0b0f573ee/14_2140_3_question.jpg

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  1. anonymous
    • one year ago
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    A. D'(3, 0) E'(3, –1) F'(–3, –2) B. D'(0, 3) E'(3, 1) F'(–3, –2) C. D'(0, 3) E'(3, –1) F'(–3, –2) D. D'(0, –3) E'(–3, 1) F'(–3, –2)

  2. anonymous
    • one year ago
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    @jim_thompson5910 @mathmate

  3. mathmate
    • one year ago
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    Reflecting about the y-axis has the rule: \(\large s_y:(x,y) -> (-x, y)\) So apply the rule to all three points to get the reflected image. Example, \(s_y (4,2)=(-4,2)\)

  4. anonymous
    • one year ago
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    ???

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