Question 322161
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Your function is a quadratic polynomial with no first degree term.  That means that the axis of symmetry is the y-axis.  Furthermore, the lead coefficient is positive so the parabola opens upward.


Decreasing on (*[tex \LARGE -\infty,0]]


Increasing on [*[tex \LARGE 0,\infty])



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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