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iraqichick89

  • 3 years ago

im having a really hard time solving and graphing liner equations... plz help!!

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  1. beens
    • 3 years ago
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    ??..wat you don't understand?

  2. amistre64
    • 3 years ago
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    wait til you have to make a curve :)

  3. beens
    • 3 years ago
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    true

  4. iraqichick89
    • 3 years ago
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    i dnt know how to solve them

  5. beens
    • 3 years ago
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    do u mean finding the y and x intercepts?

  6. amistre64
    • 3 years ago
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    give us something to work with....

  7. iraqichick89
    • 3 years ago
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    like y + x = -7

  8. amistre64
    • 3 years ago
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    Do you know all the parts to this equation: y = mx + b

  9. iraqichick89
    • 3 years ago
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    no i dont understand that part

  10. amistre64
    • 3 years ago
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    y stands for the value of your "y" coordinate. m stands for the way the line slopes; called the slope. x stands for the value of the "x" coordinate. b is the value of where the line crosses the y-axis. does any of that make sense?

  11. iraqichick89
    • 3 years ago
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    it makes some sence... i just get confused when it comes to solving more then graphing.

  12. amistre64
    • 3 years ago
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    as long as you can get an equation to resemble this construction (y = mx+b) then you can solve for any point on the line. Lets take your equation you gave us for an example...

  13. amistre64
    • 3 years ago
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    y + x = -7 ; do you know how to make this look more like (y=mx+b)?

  14. iraqichick89
    • 3 years ago
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    do u have yahoo messanger??

  15. amistre64
    • 3 years ago
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    nope...

  16. iraqichick89
    • 3 years ago
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    ok sorry my daughter is messinga round

  17. iraqichick89
    • 3 years ago
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    so when i read in the book its so confusing on how to solve these probelms can you show me step by step what to do?

  18. amistre64
    • 3 years ago
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    I can try: In essense; we want to know what values to make "y" for any given value of "x". In your equation; we have: y + x = -7 use algebraic techniques to solve for "y"; which in this case just means subtracting (x) from both sides to get: y +x-x = -7-x y = -x -7 ; which resembles our (y = mx + b) Do you understand it so far?

  19. amistre64
    • 3 years ago
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    Once we have any two points that we can connect together; we can form a straight line. Many times, those two points will be where the line crosses the y-axis; and where the line crosses the x-axis. These crossing points are called "intercepts" becasue it is where the line actually gets intercepted by the x or y axis.

  20. iraqichick89
    • 3 years ago
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    ok

  21. amistre64
    • 3 years ago
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    What two points (called coordinates) can you come up with using : y = -x -7 in order to connect and make a line?

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