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School_Island_sad_face

What is the function rule for the graph shown? A graph of the ordered pairs: 9 comma zero, eleven comma 2, twelve comma 3, and fourteen comma 5.

  • one year ago
  • one year ago

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  1. imranmeah91
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    can you write the number out

    • one year ago
  2. School_Island_sad_face
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    I will just attatch the graph

    • one year ago
  3. School_Island_sad_face
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    • one year ago
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  4. imranmeah91
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    alright, let's pick out two points and find a slope betweent them

    • one year ago
  5. School_Island_sad_face
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    is that picture you? cuz if it is---- HOLY CRAB APPLES YOUR A BIG MAN

    • one year ago
  6. School_Island_sad_face
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    ok

    • one year ago
  7. School_Island_sad_face
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    11,2 and 12,3

    • one year ago
  8. imranmeah91
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    (11,2) and (12,3) slope y2 - y1 ------------------- x2- x1

    • one year ago
  9. School_Island_sad_face
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    ok?

    • one year ago
  10. imranmeah91
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    so the second pair is x2,y2 3 - 2 ----------------- =1 12-11 that's your slope y=x+b

    • one year ago
  11. imranmeah91
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    y=mx+b slope=m=1 so we plug in 1 y=x+b

    • one year ago
  12. School_Island_sad_face
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    so y = x + 9?

    • one year ago
  13. imranmeah91
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    no, 9 is x intercept, you want the y interecept

    • one year ago
  14. imranmeah91
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    to find b , simply plug x and y value from one ordered pair

    • one year ago
  15. imranmeah91
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    let's choose (11,2) y=x+b 2=11+b b=-9

    • one year ago
  16. School_Island_sad_face
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    well now I am confused.. there are 4 answers and only on one of them is something other than 9.... and it is y = 1/9 * x

    • one year ago
  17. School_Island_sad_face
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    wait so y = x – 9?

    • one year ago
  18. imranmeah91
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    yes

    • one year ago
  19. School_Island_sad_face
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    oooohhhhhhhhh

    • one year ago
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