Problem
3. Solve the quadratic equation by graphing it. Select all possible answers. \[ \begin{array}{l} y=-2 x^{2}+12 x-18 \\ x=? \end{array} \] 0 3 $-2$ 4 7 1 No real solutions
Solution
Step 1 ：Set y = 0: \(0 = -2x^2 + 12x - 18\)
Step 2 ：Solve for x: \(x = 3\)
Step 3 ：\(\boxed{x = 3}\)
