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Agl202

  • one year ago

Quick Question: What is the standard form equation of the line shown below? Graph of a line going through negative 3, negative 1 and 3, 2 y + 1 = one half (x + 3) y = one half x + five halves −x + 2y = 1 x − 2y = −1

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  1. Agl202
    • one year ago
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    @jim_thompson5910

  2. jim_thompson5910
    • one year ago
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    what do you have so far?

  3. Agl202
    • one year ago
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    I have hard time understanding graphs. :(

  4. jim_thompson5910
    • one year ago
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    well first off, standard form is Ax+By = C for example, 2x+3y = 6 is in standard form

  5. jim_thompson5910
    • one year ago
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    so you can cross off 2 choices

  6. Agl202
    • one year ago
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    The first two?

  7. jim_thompson5910
    • one year ago
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    yeah you can cross off the first two since they aren't in the form Ax+By = C

  8. Agl202
    • one year ago
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    So, I think it's D.

  9. Agl202
    • one year ago
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    right?

  10. jim_thompson5910
    • one year ago
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    why D ?

  11. Agl202
    • one year ago
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    Because the x doesn't have negative numbers

  12. jim_thompson5910
    • one year ago
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    why not plug in each point to see if the equation is satisfied?

  13. jim_thompson5910
    • one year ago
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    x - 2y = -1 -3 - 2(-1) = -1 ... plug in (x,y) = (-3,-1) simplify both sides. Are the two sides equal?

  14. Agl202
    • one year ago
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    Oh I see, Makes sense. thx..

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