ISRO | ISRO CS 2011 | Question 52

Given
X: 0 10 16
Y: 6 16 28
The interpolated value X=4 using piecewise linear interpolation is
(A) 11
(B) 4
(C) 22
(D) 10

Answer: (D)
Explanation: Simple line placement is an easy way to connect points with straight lines.

Thus the equation of the line that joins the first two points is

y-x = 6
So, in x = 4, y is 10

hence, option D is correct.
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