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mixer [17]
3 years ago
9

What does a ⊥ c the upside-down t mean? (this is from geometry) Please help

Mathematics
1 answer:
Lilit [14]3 years ago
3 0
The upside down t means that the two lines are perpendicular
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Analyze the columns below and complete the instructions that follow. Column A Column B The slope of the line through the points
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C is the right answer

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Step 1: Find the slope:

    m= \dfrac{y_2-y_1}{x_2-x_1}= \dfrac{-2-7}{4-(-2)} =  \dfrac{-9}{6}= -\dfrac{3}{2}

This gives you y=-\dfrac{3}{2}x+b, but we need to find b.

To find b, substitute in one (x,y) pair and it doesn't matter which one.  I'll go with (4,-2):

    \begin{aligned}-2&=-\dfrac{3}{2}(4)+b\\[0.5em]-2&=-6+b\\[0.5em]4&=b\end{aligned}

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It's always a good idea to toss in the other x-value from the other point, to make sure it checks out.

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3 years ago
In traveling from a dormitory to a certain city, a student went 1/5 of the way by foot, 2/3 of the way by bus, and the remaining
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