The Calculator Graphs Shows The $x$ -Values of The $x$ -Intercepts of the Graph of the Polynomial in the Equation

Multiple Choice

The calculator graphs shows the $x$ -values of the $x$ -intercepts of the graph of the polynomial in the equation. Use the graphs to solve the equation.
- $x^{2}+3 x-18=0$

A) $\{-6,3\}$
B) $\{-3,6\}$
C) $\{-3,18\}$
D) $\{0\}$