SOLUTION: Find the slope of the line that passes through the given pair of points: a) (4,5) and (3,8) b) (‐2, ‐2) and (4, ‐4)

Algebra ->  Linear-equations -> SOLUTION: Find the slope of the line that passes through the given pair of points: a) (4,5) and (3,8) b) (‐2, ‐2) and (4, ‐4)      Log On


   

Question 471034: Find the slope of the line that passes through the given pair of points:
a) (4,5) and (3,8)
b) (‐2, ‐2) and (4, ‐4)
Answer by algebrahouse.com(1659) About Me  (Show Source):
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y2 - y1
-------- = slope
x2 - x1

a) (4,5) and (3,8)
8 - 5
------ {substituted into slope formula}
3 - 4


3
--- = slope {subtracted on top and bottom}
-1

slope = -3 {reduced}


b) (‐2, ‐2) and (4, ‐4)
-4 - (-2)
--------- = slope {substituted into slope formula}
4 - (-2)

-4 + 2
------- = slope {simplified on top and bottom}
4 + 2

-2
--- = slope {added on top and bottom}
6

slope = -1/3 {reduced}

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