Determine if the graph represents a polynomial function. If it is a polynomial function, then determine the number of turning points and the least degree possible. This is not a polynomial. Lines are not polynomials. There are no turning points.
This graph is not a polynomial. This line is of the form y = b; there are no variables in the expression.
Yes, this graph represents a polynomial. This line is of the form y = b; there are no turning points as it is a polynomial of degree zero.
Yes, this graph represents a polynomial. This line is of the form y = b; there are two turning points at each end point of the line.