If the points A(-2,1), B(a,b) and C(4,1) are collinear and a-b =1, find a and b.
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aqua089:
Find value of a and b
a=2 and b=1
Sorry I did wrong.... with that same method if u solve u get a=2 and b=1
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Answer:
a = 2, b = 1
Step-by-step explanation:
All 3 points are co linear.
A and C have same Y coordinate. (y coordinate = 1)
=> It's a line parallel to X Axis.
That means any point on that line will have y coordinate as 1 only.
=> b = 1.
Since a - b = 1, a = 2
B(a,b) = (2,1)
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