[tex]\huge\underline\mathtt\colorbox{cyan}{Graph B}[/tex]
[tex]\huge\mathsf\colorbox{white}{}[/tex]
Step-by-step explanation:
Graph B consists of a parabola that opens downward. If a parabola opens downward, the the coefficient of x will be negative.
More details:
There is an easy way to tell whether the graph of a quadratic function opens upward or downward: if the leading coefficient is greater than zero, the parabola opens upward, and if the leading coefficient is less than zero, the parabola opens downward.
