(1) Find out if it has a Stationary Point.
Take the derivative of y.
Solve for x when the derivative is 0.
(2) If it does, determine their status as maxima, minima, or inflection(s).
Inspect the values of the curve slightly before and after the point(s).
Does the parabola y = -3x^2 + 2x - 1 have a maximum or minimum value?
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