Step-by-step explanation:
Use this polynomial.
[tex] - x {}^{4} +9x {}^{3 } + 13 {x}^{2} - 45x - 50[/tex]
A degree 4 means our leading coefficient looks like.
[tex] {x}^{4} [/tex]
Since our degree is 4, our turning points would be 3.
Since we have three roots, we need two single roots and a double root.
A negative leading coefficient would have a negative sign in front of it.
Use another site to help graph the actual graph
