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Anikate

  • 4 years ago

State the range of this function: y=2x-7/2

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  1. anonymous
    • 4 years ago
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    the range is all reals

  2. Anikate
    • 4 years ago
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    huh?

  3. anonymous
    • 4 years ago
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    (-infinity, 0) (0, infinity)

  4. Anikate
    • 4 years ago
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    what?

  5. Anikate
    • 4 years ago
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    i dont get it

  6. Anikate
    • 4 years ago
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    keep goig i'l try to figure it out

  7. anonymous
    • 4 years ago
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    There are no restrictions to the range

  8. Anikate
    • 4 years ago
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    um... need to find range is all i no

  9. anonymous
    • 4 years ago
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    Okay, well you could always substitute 0 for the x value and work out the whole question from there. However, the answer I gave you earlier should be correct

  10. Anikate
    • 4 years ago
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    what was the answer u gave earlier?

  11. Anikate
    • 4 years ago
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    -3.5?

  12. anonymous
    • 4 years ago
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    All real numbers. The domain would be all real numbers, and so should the range

  13. Anikate
    • 4 years ago
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    what r real numbers?

  14. anonymous
    • 4 years ago
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    Or, you could set y= 0 and work out the whole equation

  15. Anikate
    • 4 years ago
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    then what would be my answer?

  16. Anikate
    • 4 years ago
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    -3.5?

  17. anonymous
    • 4 years ago
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    For instance, (0= 2x - 7/ 2 ) x 2 0= 4x-14 14=4x 14/4=x

  18. anonymous
    • 4 years ago
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    That's solving for x

  19. Anikate
    • 4 years ago
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    range is always y right?

  20. anonymous
    • 4 years ago
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    Substitution with x and zero would look like this: y= 2(0) -7/2 y= -5/2

  21. anonymous
    • 4 years ago
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    that is the range when solving the equation

  22. Anikate
    • 4 years ago
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    actually it would be -3.5

  23. anonymous
    • 4 years ago
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    Well, if you were trying to be precise, then yes. However, most math classes perfer that you leave it in the fractional form.

  24. Anikate
    • 4 years ago
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    idk the range when soling equatyion. and i know

  25. anonymous
    • 4 years ago
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    also it should be -2.5, not -3.5

  26. Anikate
    • 4 years ago
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    how ?

  27. anonymous
    • 4 years ago
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    2-7 = -5 -5 divided by 2 = -2.5

  28. Anikate
    • 4 years ago
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    y=2(0)-7/2 y=0-7/2 y=-3.5

  29. anonymous
    • 4 years ago
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    oh, I just got served! You are absolutely right my dear. Thanks for catching my mistake ;}

  30. Anikate
    • 4 years ago
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    oh it's k np

  31. anonymous
    • 4 years ago
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    So, do you have your answer?

  32. Anikate
    • 4 years ago
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    -3.5?

  33. anonymous
    • 4 years ago
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    yes

  34. Anikate
    • 4 years ago
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    yup thx :D

  35. anonymous
    • 4 years ago
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    No worries, glad I could help :)

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