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anonymous

  • one year ago

The coordinate grid shows points A through K. Which points are solutions to the system of inequalities listed below? 2x + y < 10 2x - 4y > 8 E, F, G, H, J E, F, G A, C, D, K A, E, F

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  1. anonymous
    • one year ago
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  2. anonymous
    • one year ago
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    @amistre64 @Hero

  3. anonymous
    • one year ago
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    @peachpi

  4. amistre64
    • one year ago
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    either graph the lines to define the appropriate area, or start plugging in point to test them out

  5. anonymous
    • one year ago
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    i dont no how to do that can you help?

  6. amistre64
    • one year ago
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    pick a point, what are the x,y values for it?

  7. Astrophysics
    • one year ago
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    |dw:1442189405527:dw| @amistre64 here you go, this might help explain things better, you can draw on here if you like

  8. anonymous
    • one year ago
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    so (3,2)

  9. amistre64
    • one year ago
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    a point is defined as (x,y) there is not x=3, y=2 point ... there is a x=2, y=3 tho plug thos values into the setup to see if they are true

  10. anonymous
    • one year ago
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    (2,3)

  11. anonymous
    • one year ago
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    sorry one sec

  12. amistre64
    • one year ago
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    2x + y < 10 2 3 ----------- 4 +3 < 10 , true 2x - 4y > 8 2 3 ----------- 4 - 12 > 8 ... not looking so good for this point

  13. anonymous
    • one year ago
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    ok cna we try (4,-2)

  14. anonymous
    • one year ago
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    *can

  15. amistre64
    • one year ago
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    so point E .. try it out, lets see what you get

  16. anonymous
    • one year ago
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    i dont know how to plug it in

  17. amistre64
    • one year ago
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    graphing the lines would be quicker of course ... you have an x and y value ... and you have variables named x and y in your equations.

  18. amistre64
    • one year ago
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    also, i provided an example already

  19. amistre64
    • one year ago
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    copy. paste, input the values 2x + y < 10 4 -2 ----------- 2x - 4y > 8 4 -2 -----------

  20. amistre64
    • one year ago
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    if we draw the lines ... and im prolly getting this off a little |dw:1442190031187:dw|

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spraguer (Moderator)
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