Answer and Step-by-step explanation:
[tex]\frac{-b}{2a}[/tex] is the equation to find the axis of symmetry of a quadratic equation.
[tex]y = -3x^{2} + 18x + 10[/tex]
-3 = a
18 = b
10 = c
Now we plug the values into the equation.
[tex]\frac{-(18)}{2(-3)} \\\\\\\frac{-18}{-6} \\\\\\3[/tex]
The axis of symmetry is on the line x = 3.
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