Q. 3 A3.5( 8 Votes )

# Find polynomials p(x) satisfying each set of conditions below.First degree polynomial with p(1) = 1 and p(2) = 3.

let the polynomial be p(x)

p(x) = ax + b (where a and b are constants)

p(1) = a + b = 1 – (1) (given in the question)

p(2) = 2a + b = 3 – (2) (given in the question)

by (1) and (2)

a = 2, b = -1

p(x) = 2x – 1

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