Answer:
See below in BOLD.
Step-by-step explanation:
y = -3x 2 + 18x - 2
y = -3(x^2 - 6x) - 2
y = -3 [ (x - 3)^2 - 9] - 2
y = -3(x - 3)^2 + 25 is vertex form.
The coefficient of x^2 is negative so we have a maximum value of the function.
The maximum value is 25 and the axis of symmetry is x = 3.
