Question

find the first degree polynomial with P(1)=1 and P(2) =3​

Answer 1

Answer:

required first degree polynomial= ax+b= 2x-1

Step-by-step explanation:

let the first degree polynomial be ax+B

p(1)=1

a(1)+b=1

a+b=1-------->I

P(2) =3

a(2) +b=3

2a+b= 3---->II

II - I

a= 2

from I

2+b = 1

b= 1-2

b=-1

required first degree polynomial= ax+b= 2x-1