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sonja_lee2

  • 3 years ago

Find the slope of the line passing through the given points. Then tell whether the line falls, rises, is horizontal, or is vertical. (14,-3),(4,11)

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  1. Hero
    • 3 years ago
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    Are you familiar with y = mx + b?

  2. sonja_lee2
    • 3 years ago
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    yes

  3. sonja_lee2
    • 3 years ago
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    i know how to find the slope i just dont know how to find out whether if it falls, rises that stuff

  4. Hero
    • 3 years ago
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    Okay, good, now, I'm going to simply plug each point into that formula: -3 = 14m + b 11 = 4m + b Are you with me so far?

  5. sonja_lee2
    • 3 years ago
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    yes

  6. Hero
    • 3 years ago
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    Okay, m is the slope, so I'm going to isolate b in both equations: b = -3 - 14m b = 11 - 4m Do you see how I got that?

  7. sonja_lee2
    • 3 years ago
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    kinda

  8. Hero
    • 3 years ago
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    It takes a little practice to understand it, but now I'm going to set b = b to get: -3 - 14m = 11 - 4m

  9. Hero
    • 3 years ago
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    Now all I have to do is solve for m: -3 - 11 = 14m - 4m -14 = 10m -14/10 = m - 7/5 = m

  10. Hero
    • 3 years ago
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    There we go

  11. sonja_lee2
    • 3 years ago
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    ok i was wait thats not right

  12. Hero
    • 3 years ago
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    You entered the answer as soon as I posted it, lol

  13. sonja_lee2
    • 3 years ago
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    kk i got that too

  14. sonja_lee2
    • 3 years ago
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    haha yeah

  15. Hero
    • 3 years ago
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    You shouldn't enter the answer so fast :P I guess I can take my own advice in that regard.

  16. sonja_lee2
    • 3 years ago
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    okay

  17. Hero
    • 3 years ago
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    Sometimes, I make typos, so you should wait at least one minute after someone posts their answer.

  18. sonja_lee2
    • 3 years ago
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    um ok

  19. Hero
    • 3 years ago
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    My fingers are not as bright as my brain

  20. Hero
    • 3 years ago
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    Sometimes, my fingers hit keys they shouldn't.

  21. sonja_lee2
    • 3 years ago
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    oh okay its a

  22. sonja_lee2
    • 3 years ago
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    all G

  23. Hero
    • 3 years ago
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    By the way, If the slope is NEGATIVE, it FALLS If the slope is POSITIVE, it RISES

  24. sonja_lee2
    • 3 years ago
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    always?

  25. Hero
    • 3 years ago
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    If something falls, it's always going down, right? If a plane rises from the ground, it is always going up, right?

  26. sonja_lee2
    • 3 years ago
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    right

  27. Hero
    • 3 years ago
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    |dw:1348449900048:dw|

  28. sonja_lee2
    • 3 years ago
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    ohh i see

  29. Hero
    • 3 years ago
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    Yeah just think about a plane either taking a nose dive or lift off

  30. sonja_lee2
    • 3 years ago
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    ohh okay thank u!

  31. Hero
    • 3 years ago
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    |dw:1348450045305:dw|

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