Question

4. Find the degree, direction of the last line, y-int, GCF, if any; find all the zeros/roots, then sketch a roughgraph of polynomial.b) –x^4– x^3+22x^2+40x

Answer 1

The degree of a polynomial is determined by the higher exponent of the variable. So, in this case the polynomial is 4 degree.

In order to find the roots of the given polynomial, you proceed as follow:

The roots of the polynomial help to sketch the graph: