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anonymous

  • one year ago

The function below shows the relationship between the length of each side of a cube (y) and the volume of the cube (x+3): y equals cube root of x plus 3 Which graph best shows the function?

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  1. anonymous
    • one year ago
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    here are the answer choices.

  2. welshfella
    • one year ago
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    the graph will pass through the point (-3,0) because 0 = cube root(-3+3)

  3. anonymous
    • one year ago
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    so would it be the first graph?

  4. welshfella
    • one year ago
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    you need to find the y intercept - that is the value of y when x = 0 y = cube root(0 + 3) = ?

  5. welshfella
    • one year ago
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    find the cube root of 3 - use ur calc

  6. welshfella
    • one year ago
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    cube root 3 = ?

  7. anonymous
    • one year ago
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    1.73...

  8. anonymous
    • one year ago
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    @welshfella sorry, i got sidetracked by family

  9. welshfella
    • one year ago
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    thats OK - but you have the square root there not the cube enter 3 then ^ then 0.333333 and enter

  10. anonymous
    • one year ago
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    1.442249565...

  11. anonymous
    • one year ago
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    so would that be the y-intercept?

  12. welshfella
    • one year ago
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    yes thats correct

  13. welshfella
    • one year ago
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    so which graph is it?

  14. anonymous
    • one year ago
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    its the second graph?

  15. anonymous
    • one year ago
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    because the second graphs intercept is a little more than 1, but the first ones is too much to be right, am i correct?

  16. anonymous
    • one year ago
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    im gonna go with the second graph because i think that right @welshfella thanks!:^)

  17. welshfella
    • one year ago
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    yes thats right yw

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