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haleylooove

  • 3 years ago

Find the value of x so that the line passing through (10, 5) and (x, 9) has a slope of -2

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  1. anonymous
    • 3 years ago
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    slope is \(\frac{9-5}{x-10}\) and you want that to be equal 2, so set \[\frac{4}{x-10}=2\] and solve for \(x\)

  2. anonymous
    • 3 years ago
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    you get \[\frac{4}{x-10}=2\] \[4=2(x-10)\] \[2=x-10\] \[x=12\]

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