If the points (0,2), (1,x),(3,1) are collinear the find the value of x.
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Answer:
x = 5/3
Step-by-step explanation:
collinear means they all lie on a straight line
us the formula:
x₁(y₂-y₃)+x₂(y₃-y₁)+x₃(y₁-y₂) = 0
0(x-1) + 1(1-2) + 3(2-x) = 0
= -1+6-3x = 0
= 5- 3x = 0
= 3x = 5
x = 5/3
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