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anonymous

  • one year ago

Line L passes through the points (1, 5) and (5, 8). What is the slope of a line that is perpendicular to line L? -3/4 -4/3 3/4 4/3

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  1. hartnn
    • one year ago
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    can you find the slope of a line given 2 points??

  2. 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.

  3. anonymous
    • one year ago
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    m=3/4 so thats my final answer?

  4. hartnn
    • one year ago
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    thats the slope of line L but we need the slope of a line that is perpendicular to line L!

  5. hartnn
    • one year ago
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    the slope of perpendicular lines have product = -1

  6. hartnn
    • one year ago
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    so m*(3/4) = -1 find m

  7. anonymous
    • one year ago
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    m=-4/3

  8. hartnn
    • one year ago
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    thats correct! :)

  9. anonymous
    • one year ago
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    Thank u!

  10. hartnn
    • one year ago
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    welcome ^_^

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