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calculusxy

  • one year ago

MEDAL!!! Find the x- and y-intercepts for the graphs of the relationships in the problem.

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  1. calculusxy
    • one year ago
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  2. calculusxy
    • one year ago
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    @robtobey @jdoe0001

  3. calculusxy
    • one year ago
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    @dan815

  4. dan815
    • one year ago
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    an x value can have one y value only for it to be a function of only x

  5. calculusxy
    • one year ago
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    But how is that answering the question? @dan815

  6. dan815
    • one year ago
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    look at the pic you attached

  7. calculusxy
    • one year ago
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    How would I figure out the x- and y-intercepts ?

  8. dan815
    • one year ago
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    what is y when x=0,y-int what is x when y=0, xint

  9. calculusxy
    • one year ago
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    So for like A, would it be: y-intercept : (0,4) x-intercept: (1,0) ?

  10. dan815
    • one year ago
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    x-intercept: (1,0) and (-1,0)

  11. calculusxy
    • one year ago
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    Oh yeah. Thanks. Can I go over with you for the other three as well?

  12. dan815
    • one year ago
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    okay

  13. calculusxy
    • one year ago
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    Give me a moment please.

  14. calculusxy
    • one year ago
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    I am confused on B.

  15. calculusxy
    • one year ago
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    This is a function, but it doesn't look like a linear function. I wish I knew the slope, and then figure out "b."

  16. dan815
    • one year ago
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    you work with the data only

  17. dan815
    • one year ago
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    what is y when x=0,y-int what is x when y=0, xint

  18. calculusxy
    • one year ago
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    Oh. y-int : (0,-3) x-int : (19,0)

  19. dan815
    • one year ago
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    yes

  20. calculusxy
    • one year ago
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    C...

  21. calculusxy
    • one year ago
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    y-int : (0,10) x-int : (4.0)

  22. calculusxy
    • one year ago
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    And then D... y-int: (0,-1) x-int : (1,0) and (-1,0) ?

  23. dan815
    • one year ago
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    C) y-int : (0,10) x-int : (4,0) and (-2,0)

  24. calculusxy
    • one year ago
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    Sorry missed the other. But thanks.

  25. dan815
    • one year ago
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    D is right

  26. calculusxy
    • one year ago
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    I have another question.

  27. dan815
    • one year ago
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    ok

  28. calculusxy
    • one year ago
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    Find the input for the following function with the given outputs. If there is no possible input for the given output, explain why not. x = ? \[f(x) = \sqrt{2x - 6}\] \[\rightarrow f(x) = 10\]

  29. anonymous
    • one year ago
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    d is correct

  30. dan815
    • one year ago
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    \[10=\sqrt{2x-6}\\ 10^2=2x-6\\ 10^2+6=2x\\ \frac{(10^2+6)}{2}=x\]

  31. dan815
    • one year ago
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    x=53

  32. calculusxy
    • one year ago
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    x = 53 ?

  33. calculusxy
    • one year ago
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    Okay. Thank you. And I just wanted to make sure my answers to two other questions.

  34. calculusxy
    • one year ago
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    So this one is the same thing as the one that we just did right now but the number is different: x = ? \[f(x)=3x - 7\] \[\rightarrow f(x) = -1\] My answer is:\[x = 2\]

  35. dan815
    • one year ago
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    3*2-7=-1

  36. calculusxy
    • one year ago
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    This one is with the four graphs/tables that I gave at first in the attachment. Question: Which of the relationships are functions? If a relationship is not a function give a reason to support your conclusion. Answer: Relationships B, C, and D are all functions because every input has only one output. However, for A, you can see that for an input, you have several outputs.

  37. dan815
    • one year ago
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    C is not a function

  38. dan815
    • one year ago
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    of x

  39. calculusxy
    • one year ago
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    So C is not a function?

  40. calculusxy
    • one year ago
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    @dan815

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