It turns out all we need to know in order to determine the range of a quadratic function is the -value of the vertex of its graph, and whether it opens up or down. This is easy to tell from a

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Find the domain and range of the equation \(f(x)=2(x+3)^2-8\). Domain: all real numbers | Range: all real numbers Domain: all real numbers ≥ 8 | Range: all real numbers ≤ 3

To find the domain of a function, just plug the x-values into the quadratic formula to get the y-output. To find the range of a function, first find the x-value and y-value of the vertex using the formula x =

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