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alyxxx101

  • 2 years ago

what is the slope of the line that passes through (-3,2) and (1,2)?

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  1. heathernelly
    • 2 years ago
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    use m=(y2-y1)/(x2-x1)

  2. whpalmer4
    • 2 years ago
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    Slope is the rise over the run. How many units up (or down) does the line go when you move 1 unit right or left? Formula: \[m= \frac{(y_2-y_1)}{(x_2-x_1)}\] where \((x_1,y_1), (x_2,y_2)\) are the points.

  3. alyxxx101
    • 2 years ago
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    I did. But i'm not sure if my answer is correct...

  4. whpalmer4
    • 2 years ago
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    Okay, show your work and we'll check it for you.

  5. whpalmer4
    • 2 years ago
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    I'll give you a hint: look at the y-values.

  6. alyxxx101
    • 2 years ago
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    |dw:1360351189497:dw|

  7. heathernelly
    • 2 years ago
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    what did you get as your answer?

  8. alyxxx101
    • 2 years ago
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    i got 4

  9. alyxxx101
    • 2 years ago
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    Am i way off?

  10. heathernelly
    • 2 years ago
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    the answer is 0 because 0/4 can't be 4

  11. whpalmer4
    • 2 years ago
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    0 divided by 4 is 4?

  12. alyxxx101
    • 2 years ago
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    Oh okay. I see. So the answer to that problem is 0 then?

  13. alyxxx101
    • 2 years ago
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    How does that work though? Can you please show me?

  14. heathernelly
    • 2 years ago
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    yes

  15. alyxxx101
    • 2 years ago
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    Ok thanks! :)

  16. whpalmer4
    • 2 years ago
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    Yes. That's why I suggested looking at the y values. If the y values are identical, the line is horizontal. If the x values are identical, the line is vertical.

  17. heathernelly
    • 2 years ago
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    |dw:1360351384095:dw|

  18. whpalmer4
    • 2 years ago
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    It's good to have an intuitive understanding of what slope means. Positive slope means it goes up as you move to the right. Negative slope means it goes down as you move to the right. Slope > 1 means it goes up more than 1 unit for every unit you move on the x axis. Slope < 1 (but > 0) means it goes up less than 1 unit for every unit you move on the x axis.

  19. alyxxx101
    • 2 years ago
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    what is the slope of the line that passes through (-3,2) and (1,2)? so to this problem...my answer is going to be 0 then?

  20. whpalmer4
    • 2 years ago
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    Yes, the answer is 0. The line is horizontal, because for each point, the y value is the same.

  21. alyxxx101
    • 2 years ago
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    Oh okay! That makes sense now

  22. heathernelly
    • 2 years ago
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    yes the answer is 0! :)

  23. whpalmer4
    • 2 years ago
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    It's really worth practicing finding the slope and seeing what different slopes look like; having a feel for that will save you time and prevent wrong answers in the future. Use a pair of dice to make up points, plot lines between them, and find the slope.

  24. alyxxx101
    • 2 years ago
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    Oh alright. Thanks a ton you guys! I really appreciate it! :)

  25. heathernelly
    • 2 years ago
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    np!

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