Answer:
(negative) quadratic function
Explanation:
Quadratic function: polynomial function of degree 2, represented graphically by a parabola.
Standard form of a quadratic function:
![f(x)=ax^2+bx+c](https://img.qammunity.org/2023/formulas/mathematics/college/gtwfur36jgufas40j4egf3v22iz0dzre6e.png)
If the leading coefficient (
) is positive, the parabola opens upwards (U-shaped)
If the leading coefficient (
) is negative, the parabola opens downwards (∩-shaped)