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twilaswift Group Title

The graph of a function is shown here. A coordinate plane shows five ordered pairs being plotted. From the origin, the first dot is zero units right and seven units up. The second dot is two units right and six units up. The third dot is four units right and five units up. The fourth dot is eight units right and three units up. The fifth dot is six units right and four units up. Which ordered pair, when added to the graph, will keep the graph a function? (4, 4) (6,1) (10, 2) (2, 9)

  • 2 years ago
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  1. Mr.Me Group Title
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    |dw:1353364609116:dw|

    • 2 years ago
  2. Ahsher97 Group Title
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    are all of those from the origin? or ontop of eachother

    • 2 years ago
  3. Mr.Me Group Title
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    find the equation of the line then plug in the points

    • 2 years ago
  4. Mr.Me Group Title
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    from the origin

    • 2 years ago
  5. Mr.Me Group Title
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    y=mx+b y intercept is 7 so b =7 slope=m= (y2-y1)/(x2-x1) use the points (0,7) and (2,6)

    • 2 years ago
  6. Mr.Me Group Title
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    so m=-1/2

    • 2 years ago
  7. Mr.Me Group Title
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    and y=-1/2x+7 plug in the possible values into this equation to see if they are valid

    • 2 years ago
  8. Mr.Me Group Title
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    example (4,4) y=-1/2x+7 (4)=-1/2(4)+7 4=-2+7 4=5 this doesn't make sense so (4,4) is not the point we want contine in this fashion until you find a point that works

    • 2 years ago
  9. twilaswift Group Title
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    ok.

    • 2 years ago
  10. twilaswift Group Title
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    so (6, 1)?

    • 2 years ago
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