Identify the maximum or minimum value and the domain and range of the graph of the function y = 2(x + 2)^2 - 3

1 answer:

8 0

y = 2(x + 2)^2 - 3 has the form y = a(x-h)^2 + k.

Here, a=2, h=-2 and k=-3.

This is a quadratic function. Its graph is a vertical one which opens up (we know that because a = 2 is positive). Its vertex is (-2, -3). Because the graph opens up, (-2, -3) represents the minimum of this function.

The domain of any and all polynomial(s) includes "all real numbers."
The range is the set of possible outputs (y-values) and is (-3, infinity).

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