Question

Give the value of the maximum or minimum of the function f(x) = x2 - 1.
max or min = __________ Enter only a number.

Answer 1

min = -1

Answer 2

hint : vertex

Answer 3

You can tell it is a min because it is a parabola and the leading coefficient (number in front) is positive and therefore the parabola is opening up.

Answer 4

vertex: (h,k) h=-b/2a and k=f(-b/2a) for k you are just plug h into your equation(for the x's)