The Graphing Calculator Screen Shows the Graphs of the Two $y=\frac{1}{2} x^{2}-3$

Multiple Choice

The graphing calculator screen shows the graphs of the two given functions, and the display gives the coordinates of one of the solutions. Find the other solution.
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$y=\frac{1}{2} x^{2}-3$
$x+y=1$

A) $(4,-3)$
B) $(6,-5)$
C) $(-4,5)$
D) $(5,-4)$