Exercise 4 Page 268

We want to identify the vertex, axis of symmetry, maximum or minimum value, domain, and range of the given quadratic function. Note that the formula is already expressed in vertex form,

y = a (x - h)^{2} + k,

where

a,

h,

and

k

are either positive or negative numbers.

f (x) = 4 (x + 2)^{2} - 6

It is important to note that we do not need to graph the parabola to identify the desired information. Let's compare the general formula for the vertex form to our equation.