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shelby1290

  • one year ago

Solve the following system by graphing. Check your solution. a) 3x + y = 5 -x + 3y = -15

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  1. misty1212
    • one year ago
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    HI!!

  2. shelby1290
    • one year ago
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    hey

  3. misty1212
    • one year ago
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    does it really say "solve by graphing"?

  4. shelby1290
    • one year ago
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    yes lol

  5. misty1212
    • one year ago
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    a lousy method, but it is certainly easy using the computer

  6. misty1212
    • one year ago
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    http://www.wolframalpha.com/input/?i=3x%2By%3D5%2C-x%2B3y%3D-15

  7. misty1212
    • one year ago
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    you can see that they intersect at the point \((3,-4)\) there are lots of simpler ways to do it though

  8. shelby1290
    • one year ago
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    yea i've been trying https://www.desmos.com/calculator but idk how they got (3,-4)

  9. misty1212
    • one year ago
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    use wolfram see how easy it was?

  10. shelby1290
    • one year ago
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    i think the graph on my worksheet is too small to draw on

  11. misty1212
    • one year ago
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    what does it look like?

  12. shelby1290
    • one year ago
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    i'll take a picture of it brb one sec

  13. misty1212
    • one year ago
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    i typed both in here https://www.desmos.com/calculator got the same answer

  14. shelby1290
    • one year ago
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  15. shelby1290
    • one year ago
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    @misty1212 that's what it looks like ^

  16. misty1212
    • one year ago
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    they did not leave you a lot of room did they?

  17. misty1212
    • one year ago
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    type them both in to desmos if that is what you want to do, then copy on to your graph

  18. shelby1290
    • one year ago
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    not at all lol

  19. misty1212
    • one year ago
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    when i sent the desmos link it did not include the graphs, you have to type them in

  20. misty1212
    • one year ago
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    but they will definitely intersect at \((3,-4)\)

  21. shelby1290
    • one year ago
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    okay that's fine i'll just make do and fill in the points myself

  22. misty1212
    • one year ago
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    good idea!

  23. shelby1290
    • one year ago
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    desmos has a feature where you can click the line and to tell what the exact point is

  24. shelby1290
    • one year ago
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    but thank you

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