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MaeganR

  • 3 years ago

solve by graphing x + y = 3

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  1. Mathhelp346
    • 3 years ago
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    Turn it into slop-intercept form, which is y=mx+b. m is the slope b is the y-intercept

  2. Mathhelp346
    • 3 years ago
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    *slope

  3. MaeganR
    • 3 years ago
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    So Y= 3x + b?

  4. Mathhelp346
    • 3 years ago
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    No

  5. DHASHNI
    • 3 years ago
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    x + y = 3 we know that the general form of slope is y=mx +c where m is the slope and c is the intercept and so , i am trying to make the given equation to look like the general form => y=(-1)x+3 find the points:|dw:1357702924977:dw|

  6. MaeganR
    • 3 years ago
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    My teacher is not doing that way, and I am so confused

  7. Mathhelp346
    • 3 years ago
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    Ok, so your equation is x+y=3 In order to turn this into slope-intercept form, you will subtract the x, leaving you with y=-x+3. Similar to y=mx+b, right? Then, 3=b(y-intercept) and the slope is -1. Slope is: \[\frac{ rise }{ run }\]

  8. MaeganR
    • 3 years ago
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    I am sorry there are two parts to the problem, the first is x + y=3 and 2x + 5y = 12

  9. MaeganR
    • 3 years ago
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    I am new at this and I totally apologize

  10. Mathhelp346
    • 3 years ago
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    Then, you just do the same. Except you would have to divide both sides by 5. |dw:1357703298547:dw|

  11. MaeganR
    • 3 years ago
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    Ok

  12. Mathhelp346
    • 3 years ago
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    |dw:1357703426599:dw|

  13. MaeganR
    • 3 years ago
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    Ok I knew you had to do something to both sides, but I was not sure what to do once I got a fraction

  14. MaeganR
    • 3 years ago
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    Thank you

  15. Mathhelp346
    • 3 years ago
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    You're welcome :)

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