## Calculus with Applications (10th Edition)

$$y=-x^{4}+2x^{3}+10x+15$$ The graph of $y=-x^{4}+2x^{3}+10x+15$ has both ends down, at most three turning points, and a $y$-intercept of $15$. This is graph $G$.
$$y=-x^{4}+2x^{3}+10x+15$$ The graph of $y=-x^{4}+2x^{3}+10x+15$ has both ends down, at most three turning points, and a $y$-intercept of $15$. This is graph $G$.