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KaylaRdz0405

  • one year ago

Which values of x and y are solutions to the open sentence?

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  1. KaylaRdz0405
    • one year ago
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    \[5y \ge 3x+4\]

  2. DanJS
    • one year ago
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    Since you have one equation with 2 variables, you can not solve for a specific solution, the answer will have restrictions

  3. DanJS
    • one year ago
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    solve for Y, and say , all Y , such that, ygreater than or equal to .....

  4. KaylaRdz0405
    • one year ago
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    A. x = 1, y = 1 B. x = 1, y = 2 C. x = 2, y = 1 D. x = 4, y = 3

  5. welshfella
    • one year ago
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    5y >= 3x + 4 divide through by 5 y >= 0.6x + 0.8

  6. welshfella
    • one year ago
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    now plug in the values in the 4 options to see which one or ones fit

  7. KaylaRdz0405
    • one year ago
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    is it c

  8. welshfella
    • one year ago
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    x = 2 y = 1 y = 1 0.6(2) + 0.8 = 2 no - here y is < 0.6x + 0.8

  9. welshfella
    • one year ago
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    you need y to be greater or equal to 0.6x + 0.8

  10. KaylaRdz0405
    • one year ago
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    so then D

  11. welshfella
    • one year ago
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    i think you are guessing plug in the values and see if they fit try B

  12. welshfella
    • one year ago
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    for B y = 2 what does 0.6x + 0.8 equal ( here x = 1)

  13. KaylaRdz0405
    • one year ago
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    but isnt it 5*4 be one step if the answer was D

  14. KaylaRdz0405
    • one year ago
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    im kinda confused

  15. welshfella
    • one year ago
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    |dw:1441137506968:dw|

  16. welshfella
    • one year ago
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    left side = 2 right side = 0.6* 1 + 0.8 = what?

  17. KaylaRdz0405
    • one year ago
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    1.4

  18. KaylaRdz0405
    • one year ago
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    wait

  19. welshfella
    • one year ago
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    right so we can see that this is the correct one because 2 > 1.4

  20. KaylaRdz0405
    • one year ago
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    oh ok thx

  21. welshfella
    • one year ago
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    get it?

  22. KaylaRdz0405
    • one year ago
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    yes

  23. welshfella
    • one year ago
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    the sign >= which means greater than OR = to

  24. welshfella
    • one year ago
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    in this case its greater than

  25. KaylaRdz0405
    • one year ago
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    yeah i got it

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