Respuesta :
Answer:
x = 3
Step-by-step explanation:
Given a quadratic in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the axis of symmetry is
x = - [tex]\frac{b}{2a}[/tex]
y = 3x² - 18x + 1 ← is in standard form
with a = 3, b = - 18
x = - [tex]\frac{-18}{6}[/tex] = 3
Axis of symmetry is x = 3
