Question

Q 7) Find the missing term in the following table:
x 1 2 3 4 5 6 7
f(x) 2 4 8 - 32 64 128

Answer 1

16

Answer 2

it can be clearly seen that f(x)=2^x

hence f(4)=2^4

Answer 3

solve it by interpolation

Answer 4

i know the backward and forward interpolation formulas but what is the interpolation of central number