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jakk

  • one year ago

I need help ...!! Select an ordered pair from the choices below that is a solution to the following system of inequalities: 3x – 4y > 7 y < 2x + 3 a. (3, -3) b. No solution c. (-4, -1) d. (6, 3)

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  1. DrV
    • one year ago
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    Dear Jakk, Substitute the given answers into both inequalities. A solution would make both inequalities true.

  2. jakk
    • one year ago
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    how would i do that

  3. DrV
    • one year ago
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    For example, using the answer to (a): 3(3) - 4(-3)>7 9+12>7, so this point works in the first inequality. Now try it in the secone inequality.

  4. jakk
    • one year ago
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    so it would be like 3 < 2(-3) + 3 3<-6+3 right ?

  5. DrV
    • one year ago
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    Nope. For answer (a) x = 3 and y=-3. You substituted incorrectly.

  6. jakk
    • one year ago
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    -3<2(3)+3 -3<6+3 like this ?

  7. DrV
    • one year ago
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    Great! Looks like you found your solution. Answer (a) makes both inequalities true. I'm signing off. Good luck with your math assignment.

  8. jakk
    • one year ago
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    Thanks !

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