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flyinglikeabird?

  • 3 years ago

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).

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  1. flyinglikeabird?
    • 3 years ago
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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.

  2. CalebBeavers
    • 3 years ago
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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

  3. flyinglikeabird?
    • 3 years ago
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    Ahh, okay. Thanks, that's all I needed.

  4. CalebBeavers
    • 3 years ago
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    You're welcome

  5. flyinglikeabird?
    • 3 years ago
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    I have one more problem like this. Can you help me through it?

  6. CalebBeavers
    • 3 years ago
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    Yep.

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

  8. CalebBeavers
    • 3 years ago
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    And you want slope intercept form?

  9. flyinglikeabird?
    • 3 years ago
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    Yes, same as the others.

  10. CalebBeavers
    • 3 years ago
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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.

  11. flyinglikeabird?
    • 3 years ago
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    Slope is -2

  12. CalebBeavers
    • 3 years ago
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    You should have got -5/2

  13. flyinglikeabird?
    • 3 years ago
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    Hmmm, trying again one min.

  14. flyinglikeabird?
    • 3 years ago
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    Ahh, okay. Gothcha.

  15. CalebBeavers
    • 3 years ago
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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?

  16. flyinglikeabird?
    • 3 years ago
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    2 = -5/2-1 + 2 or something like that....

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

  18. flyinglikeabird?
    • 3 years ago
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    Oh...yeah. heh I'm always gettin the steps mixed up.

  19. CalebBeavers
    • 3 years ago
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    Yep. So now you're done and thats your answer. Understand how to do it now?

  20. flyinglikeabird?
    • 3 years ago
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    Well yes and no. I'll most likely forget anyway.

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