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madmerc

  • one year ago

PLEASE HELP!!! Write the equation of the line that passes through (−3, 5) and (2, 10) in slope-intercept form.

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  1. Mehek14
    • one year ago
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    slope formula \(\tt{\dfrac{y_2-y_1}{x_2-x_1}}\)

  2. Mehek14
    • one year ago
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    \(\tt{x_1=-3\\y_1=5\\x_2=2\\y_2=10}\)

  3. madmerc
    • one year ago
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    The choices are: y = x + 8 y = x − 8 y = −5x − 10 y = −5x + 20

  4. Mehek14
    • one year ago
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    ok so let's find the slope \(\tt{\dfrac{10-5}{2-(-3)}=\dfrac{5}{5}=1}\)

  5. Mehek14
    • one year ago
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    so slope is x

  6. Mehek14
    • one year ago
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    \(\tt{y=x+b}\) we need to find the y-intercept

  7. Mehek14
    • one year ago
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    we can use any of the ordered pairs.

  8. madmerc
    • one year ago
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    so (-3, 5) would be 5 = -3 + b ?

  9. Mehek14
    • one year ago
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    yes so solve for b

  10. madmerc
    • one year ago
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    is it b = 8 ?

  11. Mehek14
    • one year ago
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    yup

  12. Mehek14
    • one year ago
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    so slope is 1x or just x y-intercept is 8

  13. Mehek14
    • one year ago
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    that makes the equation \(\tt{y=x+8}\)

  14. madmerc
    • one year ago
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    oh, okay! thank you

  15. Mehek14
    • one year ago
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    yw :]

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