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LifeIsADangerousGame

  • 4 years ago

Can someone show me how to answer all of these questions? Given the inequality below. Will the boundary line be dotted or solid? (5 points) Explain your answer. (5 points) Do the values on the boundary line make the inequality true or false? (5 points) Explain your answer. (5 points) 3x - 5y > 15

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  1. anonymous
    • 4 years ago
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    It will be dotted as there is no equal sign. False as they are not smaller or larger than 15 but exactly equal

  2. LifeIsADangerousGame
    • 4 years ago
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    My teacher won't accept that though, can you show me how to explain it?

  3. LifeIsADangerousGame
    • 4 years ago
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    And my comp didn't copy it correct. \[3x - 5y \ge 15\] that's the correct one

  4. aroub
    • 4 years ago
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    It is solid then

  5. aroub
    • 4 years ago
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    Because there is an equal sign

  6. LifeIsADangerousGame
    • 4 years ago
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    Thank you, how do I find if the values on the boundary line make the inequality true or false? (5 points

  7. aroub
    • 4 years ago
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    Do you have to graph it ?

  8. LifeIsADangerousGame
    • 4 years ago
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    Yea, but I don't know how

  9. LifeIsADangerousGame
    • 4 years ago
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    I know that the shaded area will be above the line

  10. LifeIsADangerousGame
    • 4 years ago
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    Should I put (0,0) into the equation to figure tihs out?

  11. aroub
    • 4 years ago
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    Yes

  12. LifeIsADangerousGame
    • 4 years ago
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    \[3x - 5y \ge 15\] \[-5y \ge -3x + 15\] \[y \le 3/5x - 3\] and finally \[y \le 3/5x - 3 = 0 \le -3? \]

  13. LifeIsADangerousGame
    • 4 years ago
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    Is this right?

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spraguer (Moderator)
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