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anonymous

  • 5 years ago

What are the x and y intercepts, test point, and what type of line do I use for 2y+x<10? Please helpp!

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  1. Owlfred
    • 5 years ago
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    Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

  2. anonymous
    • 5 years ago
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    test the origin

  3. anonymous
    • 5 years ago
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    first sketch the line 2y +x = 10 ( and it should be dashed because its only less than ( not less than or equal )

  4. anonymous
    • 5 years ago
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    the line has x intercept ( set y=0) of 10 , and y intercept ( set x=0 ) of 5

  5. anonymous
    • 5 years ago
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    so i fill Y in with zero and get an answer then I fil x in with zero and get another answer? then I graph it and shade everything to right?

  6. anonymous
    • 5 years ago
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  7. anonymous
    • 5 years ago
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    I understand completely now. Thanks sooo muchhh(:

  8. anonymous
    • 5 years ago
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    and can I use 1 as a test point?

  9. anonymous
    • 5 years ago
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    1 isnt a point

  10. anonymous
    • 5 years ago
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    you usually use the origin

  11. anonymous
    • 5 years ago
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    (0,1) ?

  12. anonymous
    • 5 years ago
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    unless the graph goes throught the origin

  13. anonymous
    • 5 years ago
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    yes , but 0,0 makes things easier, because you sub 0 into something alot of things disappear

  14. anonymous
    • 5 years ago
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    Oh that makes more sense. thanks.

  15. anonymous
    • 5 years ago
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    except for this like cosx , where cos 0 = 1

  16. anonymous
    • 5 years ago
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    when you draw the line, it cuts the plane into two sections, and its either one section or the other , then you check a point ( you can pick any you like by (0,0) or (1,0) , smal numbers are easiest , you find a point where the inequality holds, and then you know the inequality is true in the "half plane " where your test point was.

  17. anonymous
    • 5 years ago
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    similarly , if you were to sub in the origin and it didnt satisfy the inequality then you know the region you want is the one that doesnt contain the origin

  18. anonymous
    • 5 years ago
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    Ok thanks. this helped so much cause I have Algebra finals tomorrrow. But again, thanks so much, this means a lot. Goodnight(:

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