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flyinglikeabird? Group Title

Write the equation of the line in Slope-Intercept form, Then graph the equation by using either the slope-intercept equation or by using x- and y-intercepts. The line contains points (3, 5) and (3, 8).

  • one year ago
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  1. flyinglikeabird? Group Title
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    I have already did this problem, just need to make sure I have done it right. 0 is the slope obviously because the line is always on the x-axis.

    • one year ago
  2. CalebBeavers Group Title
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    Slope is undefined, which means its a vertical line. So the equation is gonna be x=whatever the x coordinate always is. In this case x=3

    • one year ago
  3. flyinglikeabird? Group Title
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    Ahh, okay. Thanks, that's all I needed.

    • one year ago
  4. CalebBeavers Group Title
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    You're welcome

    • one year ago
  5. flyinglikeabird? Group Title
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    I have one more problem like this. Can you help me through it?

    • one year ago
  6. CalebBeavers Group Title
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    Yep.

    • one year ago
  7. flyinglikeabird? Group Title
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    Alright, thanks. Here it is. The line contains points (2, -1) and (0, 4).

    • one year ago
  8. CalebBeavers Group Title
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    And you want slope intercept form?

    • one year ago
  9. flyinglikeabird? Group Title
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    Yes, same as the others.

    • one year ago
  10. CalebBeavers Group Title
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    Alright, well if you notice, one of your points is the y intercept. So if we find the slope we can just plug those in and were done.

    • one year ago
  11. flyinglikeabird? Group Title
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    Slope is -2

    • one year ago
  12. CalebBeavers Group Title
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    You should have got -5/2

    • one year ago
  13. flyinglikeabird? Group Title
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    Hmmm, trying again one min.

    • one year ago
  14. flyinglikeabird? Group Title
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    Ahh, okay. Gothcha.

    • one year ago
  15. CalebBeavers Group Title
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    Alright, slope intercept form is y=mx+b where m=slope and b=y coordinate of the y intercept. So plug those in and what do you get?

    • one year ago
  16. flyinglikeabird? Group Title
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    2 = -5/2-1 + 2 or something like that....

    • one year ago
  17. CalebBeavers Group Title
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    No, all you have to plug in is m and b. y=-5/2x+4

    • one year ago
  18. flyinglikeabird? Group Title
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    Oh...yeah. heh I'm always gettin the steps mixed up.

    • one year ago
  19. CalebBeavers Group Title
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    Yep. So now you're done and thats your answer. Understand how to do it now?

    • one year ago
  20. flyinglikeabird? Group Title
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    Well yes and no. I'll most likely forget anyway.

    • one year ago
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