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KJ4UTS

  • one year ago

For each of the following tables of data, determine whether the data is linear, quadratic or neither. Please explain. Thank you!

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  1. KJ4UTS
    • one year ago
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  2. KJ4UTS
    • one year ago
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    2.1204-1.5203 = 0.6001 2.9574-2.1204 = 0.837 4.1248-2.9574 = 1.1674 5.7531-4.1248 = 1.6283

  3. KJ4UTS
    • one year ago
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  4. KJ4UTS
    • one year ago
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    4.454-2.342 = 2.112 6.566-4.454 = 2.112 8.678-6.566 = 2.112 10.790-8.678 = 2.112

  5. KJ4UTS
    • one year ago
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  6. KJ4UTS
    • one year ago
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    3.128-1.232 = 1.896 5.888-3.128 = 2.76 9.512-5.888 = 3.624 14.0-9.512 = 4.488

  7. KJ4UTS
    • one year ago
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    How do I know if its linear, quadratic or neither, I think I did the work right?

  8. KJ4UTS
    • one year ago
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    I think the second one is linear?

  9. FireKat97
    • one year ago
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    I was thinking along the same lines as you... tbh Im not too sure about this one either :/

  10. KJ4UTS
    • one year ago
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    I think I got it the second one is linear because the y differences equal and the third one is quadratic because the 2nd differences equal. I have not checked the first one yet.

  11. KJ4UTS
    • one year ago
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    The first one looks like neither linear nor quadratic.

  12. anonymous
    • one year ago
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    Linear is when the difference between the points are all the same. Quadratic is when the difference between the points are increasing or deceasing each time. Neither is when it increases slower or decreases slower each time.

  13. anonymous
    • one year ago
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    For me number one is quadratic.

  14. anonymous
    • one year ago
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    Quadratic equation consist of parabola |dw:1442894201527:dw| The slopes increase in a parabola.

  15. anonymous
    • one year ago
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    Just like the slopes of number one.

  16. anonymous
    • one year ago
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    Linear is y=mx+b Let m be 5 and b be 2 (0,2) (1,7) (2,12) The difference is 5 for each one.

  17. anonymous
    • one year ago
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    Nice job attempting it though.

  18. KJ4UTS
    • one year ago
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    Thank you! I turned in the assignment and going from top to bottom: 1. Neither 2. Linear 3. Quadratic

  19. anonymous
    • one year ago
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    Does it have to be one of each?

  20. KJ4UTS
    • one year ago
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    For number 1 if you subtract the seconds you get different results: 2.1204-1.5203 = 0.6001 2.9574-2.1204 = 0.837 4.1248-2.9574 = 1.1674 5.7531-4.1248 = 1.6283 0.837-0.6001= 0.2369 1.1674-0.837=0.3304 1.16283-1.1674=0.4609 All different means its neither. For number 2 all the y's are the same: 4.454-2.342 = 2.112 6.566-4.454 = 2.112 8.678-6.566 = 2.112 10.790-8.678 = 2.112 Making it linear. For number 3 if you subtract the 2nds you get 18.4 for all of them: 3.128-1.232 = 1.896 5.888-3.128 = 2.76 9.512-5.888 = 3.624 14.0-9.512 = 4.488 4.488-3.624 = 18.4 3.624-2.76 = 18.4 2.76-1.896 = 18.4 2nds all the same mean its quadratic.

  21. anonymous
    • one year ago
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    4.488-3.624 = 18.4 3.624-2.76 = 18.4 2.76-1.896 = 18.4 Its 0.864

  22. anonymous
    • one year ago
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    Yes you are correct. Sorry for mentioning the wrong one on number one.

  23. anonymous
    • one year ago
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    I didnt calculate the change of slope because I didnt have a calculator with me. 1. somewhat looks quadratic without a calculator lol.

  24. KJ4UTS
    • one year ago
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    No problem thanks for your time and help. Thank you for catching me on that mistake, the answer was 18.4 was for a question and I got mixed up on all the work I did on paper: Consider the quadratic function f(x)=2.3x^2+5.2x-6.7 with the input values x = 2, 4, 6, 8 and 10 and I had to determine the constant value of the second differences and it was 18.4

  25. KJ4UTS
    • one year ago
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    I am just a little tired I guess lol, have a great night :)

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