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dmezzullo

  • one year ago

Which of the following is the slope between the two points (-3, 1) and (3, -6)? six sevenths -six sevenths seven sixths -seven sixths

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  1. hartnn
    • one year ago
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    The slope of the line through points (x1,y1) and (x2,y2) is given by : \(\huge m=\frac{y_1-y_2}{x_1-x_2}\) now,just put the values and find m.

  2. ZeHanz
    • one year ago
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    Given the points (x1,y1) and (x2,y2), the slope is (y2-y1)/(x2-x1). Go and do the math. It works. Every time!

  3. dmezzullo
    • one year ago
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    Is it possible to have it in simple terms lol?

  4. hartnn
    • one year ago
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    you first take the difference of y values, then take difference of x values, then just divide them...

  5. hartnn
    • one year ago
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    so, whats the difference of y values?

  6. hartnn
    • one year ago
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    do u have difficulty figuring out y values ?

  7. dmezzullo
    • one year ago
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    yes

  8. ZeHanz
    • one year ago
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    Should be as difficult as the x values ;)

  9. dmezzullo
    • one year ago
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    So divide -3 by 3 and 1 by 6?

  10. hartnn
    • one year ago
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    |dw:1359650325553:dw| now ?

  11. hartnn
    • one year ago
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    no...not divide....subtract.

  12. dmezzullo
    • one year ago
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    so divide -3 by y and +3 by x?

  13. hartnn
    • one year ago
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    no...y values are 1 and -6, right ? so, 1-(-6) =... ?

  14. ZeHanz
    • one year ago
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    There is another way. Imagine you are at the leftmost point, (-3,1). Now, to get to the rightmost point, (3,-6) you have to go 6 steps to the right, and 7 steps down (just count), so a vertical move of -7. Now ask yourself: what is the vertical move if I would go 1 (one) step to the right along the line? That is its slope.

  15. dmezzullo
    • one year ago
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    OHHHHH WOULD THE ANSWER BE 6/7 THEN?

  16. ZeHanz
    • one year ago
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    No, it would be negative, because you have to go down if you go from the leftmost to the rightmost point. Further, while you go 6 steps to the right, you go 7 steps down, so that is more than 1 unit per step...

  17. dmezzullo
    • one year ago
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    OHHH i see now, i was thinkin go up not down.

  18. dmezzullo
    • one year ago
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    tyvm

  19. ZeHanz
    • one year ago
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    So what is the answer?

  20. dmezzullo
    • one year ago
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    -6/7

  21. ZeHanz
    • one year ago
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    THe minus sign is good. Now think about 6/7: it is smaller than 1. That is not good, because if you go 1 unit to the right, you go more than 1 unit down...

  22. dmezzullo
    • one year ago
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    wait so would it be -7/6 then?

  23. ZeHanz
    • one year ago
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    Yes! Try to remember this way of doing it!

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