Question 991271
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The domain of any polynomial function is the set of real numbers.


The lead coefficient of your quadratic is positive, therefore the graph is a parabola that opens upward.  Hence the minimum value is the value of the function at the vertex.  Find the *[tex \Large x]-coordinate of the vertex by dividing the opposite of the first-degree term coefficient by two times the lead coefficient and then finding the value of the function by evaluating the function at the *[tex \Large x]-coordinate of the vertex.  The range is then all real numbers greater than or equal to the value of the function at the vertex.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \