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anonymous

  • 4 years ago

how do i graph this inequality? lxl is less than or equal to 0. is it a ray, line segment,point, or line.

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  1. mathmate
    • 4 years ago
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    Are you able to find any other number than zero that makes |x|\( le \) 0 ? If not then the solution set is a point.

  2. anonymous
    • 4 years ago
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    um...sorry im kinda confused

  3. mathmate
    • 4 years ago
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    x=0 satisfies the condition |x| <= 0?

  4. anonymous
    • 4 years ago
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    ...\[\left| x \right| \le 0 \] and is it a point?? sorry its the first dsay of geomantry

  5. mathmate
    • 4 years ago
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    Exactly, since there is only one value of x that satisfies the requirement.

  6. anonymous
    • 4 years ago
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    Ohhh! i think i understand this now but how do i graph this on a number line?

  7. mathmate
    • 4 years ago
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    |dw:1327446288521:dw|

  8. mathmate
    • 4 years ago
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    Thank you! You're welcome! :)

  9. anonymous
    • 4 years ago
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    thank you so much!! you must take stats or something if you're a student :)

  10. mathmate
    • 4 years ago
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    I wish I knew more about stats! I guess one day I will.

  11. anonymous
    • 4 years ago
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    yes then i will understand geometry

  12. mathmate
    • 4 years ago
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    Yep, we'll both work on it!

  13. anonymous
    • 4 years ago
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    oh and 1 more question x+6y=40; A(-10,5) its just a subsitution but can you take a look at this please

  14. mathmate
    • 4 years ago
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    What are you supposed to do with the line and the point A?

  15. mathmate
    • 4 years ago
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    A is not on the line. Is it supposed to be?

  16. anonymous
    • 4 years ago
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    umm i the problem says : you are givin an equation of a line and a point. Use substitution to determine wheater or not the point is on the line

  17. mathmate
    • 4 years ago
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    Oops, I gave the answer away! This is how you do it: A(-10,5) means x=-10, y=5. Substitute these values on the left hand side to get (-10) + 6(5) = -10 + 30 = 20 \( \ne \) 40 therefore A is not on the line.

  18. anonymous
    • 4 years ago
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    ooops i accidently switched up the x and y intercepts....gotta do all the 6 problems all over again..

  19. mathmate
    • 4 years ago
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    Yep, (-10,5) means (x,y). They are kind of in alphabetical order. The good new: you'll remember it for a long time! :)

  20. anonymous
    • 4 years ago
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    yeah and i now just started my math semester i was so cluless with the practice problems we did

  21. mathmate
    • 4 years ago
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    You'll get back into it soon enough, as long as you keep practising and spend the time to work out problems as you do!

  22. anonymous
    • 4 years ago
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    yeah wish i found this site last semester then i might've passed Principles of Engineering with an A we did algebra geomenty trig like soh cah toa

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