SOLUTION: the line through (4 2) and (8 5) in slope-intercept form

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Question 701899: the line through (4 2) and (8 5) in slope-intercept form
Answer by mouk(232) About Me  (Show Source):
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Solved by pluggable solver: Finding the slope


Slope of the line through the points (4, 2) and (8, 5)



m+=+%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29


m+=+%285+-+2%29%2F%288+-+4%29


m+=+%283%29%2F%284%29


Answer: Slope is m+=+3%2F4


Now the line passes through (4,2) so plug x=4 and y=2 into the formula
+y-y%5B1%5D=m%28x-x%5B1%5D%29+
giving:
+y-2=%283%2F4%29%28x-4%29+
+y-2=3x%2F4-3+
+y=3x%2F4-1+