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anonymous

  • one year ago

Please help! Medal + Fan! (easy Algebra question) What is the domain of the following parabola?

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    a. x ≥ 1 b. x ≤ 1 c. All real numbers d. y ≤ 2

  3. anonymous
    • one year ago
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    I'm not sure what the answer is, cause I've been having trouble with determining domains. My lesson never really covered it.

  4. freckles
    • one year ago
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    the domain is all the x-values in which the function exists

  5. freckles
    • one year ago
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    look at your x-axis and scroll up and down with your eyes for each value on the x-axis and if you see a part of the curve (line or whatever) there then the function exist and so that number is apart of the domain

  6. freckles
    • one year ago
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    for example does your function exist at x=-2?|dw:1440973842510:dw|

  7. freckles
    • one year ago
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    |dw:1440973873204:dw| we see the curve does exist at x=-2

  8. freckles
    • one year ago
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    so x=-2 is apart of the domain

  9. freckles
    • one year ago
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    so what do you think the whole domain is for your parabola here?

  10. anonymous
    • one year ago
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    So would the answer be all real numbers? I was stuck between B and C, but with what you said, I'm leaning towards C.

  11. freckles
    • one year ago
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    yes all real numbers the curve exists for all x-values

  12. freckles
    • one year ago
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    c is the domain while d is the range

  13. anonymous
    • one year ago
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    Thank you so much! My textbook has like one page dedicated to domain/range, but it doesn't really tell you how to calculate what the domain is. I really appreciate the help!

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