Which is not a polynomial function?a. y=3x^2+2x+1/2 b. y=10X+8 c. y= t^2+2t-4/ 2t-1 it would be c right because a is a 2nd degree function, b is a...

A polynomial function is of the form that can be
represented as:

f(x) = A1*x^n +
A2*x^(n-1)....An*x^0

Now looking at the three functions
given:

a. y = 3x^2 + 2x + 1/2 = 3x^2 + 2x +
0.5

This is a polynomial as it fits in the format given
exactly.

b. y = 10X + 8

This
also is a polynomial as it also fits into the format
given.

c. y= t^2 + 2t - 4/
2t-1

Here y = t^2 + 2t - 4/
(2t-1)

This cannot be expressed as the sum of a series of
terms with a decreasing power of t due to the term (2t-1) which lies in the
denominator.

Hence the option c is not a
polynomial.