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topjm [15]
3 years ago
14

What is the slope of the line through the points (2, 10) and (5, 8)?

Mathematics
1 answer:
xxMikexx [17]3 years ago
4 0
The slope of a line is calculated by dividing the one y portion of the line by one x portion of the line. In this problem we have two points which can indicate us one portion of the y axis and one portion of the x axis. If we have two points of one line, then we can calculate its slope:
Point one (x1, y1)
Point two (x2, y2)
then the slope can be calculated as:
m = (y2 - y1)/(x2 - x1)

So lets use our data:
Point one (2, 10)
Point two (5, 8)
then the slope can be calculated as:
m = (8 - 10)/(5 - 2<span>)
</span>m = -2/3
therefore the slope is negative and is -2/3
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  x + y = 3
- x        - x
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  y - y₁ = m(x - x₁)
y - (-1) = -1[x - (-1)]
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The answer is B.
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