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. a) This graph is not a polynomial. This line is of the form y = mx + b; there are no variables in the expression.

b) This is not a polynomial. Lines are not polynomials. There are no turning points.

c) Yes, this graph represents a polynomial. This line is of the form y = mx + b; there are no turning points as it is a polynomial of degree zero.

d) Yes, this graph represents a polynomial. This line is of the form y = mx + b; there are no turning points as it is a polynomial of degree one.