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daser333 [38]
4 years ago
8

What is the slope of a line that passes through the points (1,3)(5,-1)

Mathematics
2 answers:
viva [34]4 years ago
5 0
Slope = (3 + 1)/(1 - 5) = 4/-4 = -1

answer
slope = -1
adell [148]4 years ago
5 0
The slope of that line is -1. To find this you do the change of the y coordinates, or do -1-3, over the change of the x coordinates, or 5-1. You then get -4/4, which reduces to -1.
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What is the slope of the line that passes through the points (3,1) and (-2,5)
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valentinak56 [21]

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\bf \begin{array}{cccllll} \stackrel{\textit{point (0,-7)}}{-7=a(0)^2+b(0)+c}& \stackrel{point (7,-14)}{-14=a(7)^2+b(7)+c}& \stackrel{point (-3,-19)}{-19=a(-3)^2+b(-3)+c}\\\\ -7=c&-14=49a+7b+c&-19=9a-3b+c \end{array}

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\bf -14=49a+7b-7\implies -7=49a+7b\implies -7-49a=7b \\\\\\ \cfrac{-7-49a}{7}=b\implies \cfrac{-7}{7}-\cfrac{49a}{7}=b\implies -1-7a=b

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Step-by-step explanation:

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