SOLUTION: How do you write the equation for the line that passes through these given points. (1,9):m=2, (4,2): m=-2, and (5,6), (8,6)

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Question 734776: How do you write the equation for the line that passes through these given points. (1,9):m=2, (4,2): m=-2, and (5,6), (8,6)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How do you write the equation for the line that passes through these given points. (1,9):m=2
Use y = mx + b and the point to find b, the y-intercept
9 = 2*1 + b
b = 7
--> y = 2x + 7 is AN equation of the line.
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(4,2): m=-2
Same as the 1st one.
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and (5,6), (8,6)
Find the slope.
m = diffy/diffx = 0/3
m = 0
--> y = 6