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hali12

  • 2 years ago

Please help.... Will give medal for best anwser....

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  1. hali12
    • 2 years ago
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  2. mathteacher1729
    • 2 years ago
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    What is the slope of the line?

  3. hali12
    • 2 years ago
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    idk?

  4. hali12
    • 2 years ago
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    4, 1 & 1/2

  5. mathteacher1729
    • 2 years ago
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    Not quite.. I'm not sure how you are getting those numbers.

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  6. hali12
    • 2 years ago
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    idk how to do this math :/

  7. ZakaullahUET
    • 2 years ago
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    |dw:1350139808849:dw| y=mx+b is the slope intercept form put values in it

  8. mathteacher1729
    • 2 years ago
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    Slope-intercept is basically a very short way of describing ANY straight line. It can be super useful in figuring out, say, how much money you make if you get paid an hourly wage.

  9. mathteacher1729
    • 2 years ago
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    The slope is "rise over run" or the ratio (fraction) of how far up or down the line goes for every bit it moves left or right.

  10. mathteacher1729
    • 2 years ago
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    In this case, for every "rise" of negative 3 (going down three) the line goes one to the right.

  11. hali12
    • 2 years ago
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    so -3, 1?

  12. mathteacher1729
    • 2 years ago
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    So slope = -3/1. Slope = -3 (because any number divided by 1 is itself).

  13. hali12
    • 2 years ago
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    well -3 / 1

  14. mathteacher1729
    • 2 years ago
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    Yup, that's the slope.

  15. hali12
    • 2 years ago
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    thanks.. (:

  16. mathteacher1729
    • 2 years ago
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    Now the INTERCEPT just means "what value of y does this line cross the y-axis" the intercept is literally JUST A NUMBER. :)

  17. hali12
    • 2 years ago
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    4

  18. mathteacher1729
    • 2 years ago
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    So look at your picture. What value of y does the line cross (or touch, or intercept, they all mean the same thing) the y-axis?

  19. mathteacher1729
    • 2 years ago
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    Yup! :D

  20. hali12
    • 2 years ago
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    yay!

  21. mathteacher1729
    • 2 years ago
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    The slope intercept form of a line is y = mx + b where m is the slope (-3) and b is the intercept (4). Literally re-write that but instead of m write -3 and instead of b write +4 and you're done. :)

  22. hali12
    • 2 years ago
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    so, 4=-3x +4?

  23. hali12
    • 2 years ago
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    or y=-3x+4?

  24. mathteacher1729
    • 2 years ago
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    The second one.===> y=-3x+4 The crazy thing is... that describes the ENTIRE line. All the points on the line obey that equation. Question -- what is the value of Y on the line when X = 2? (look at your picture)

  25. hali12
    • 2 years ago
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    uh...

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