Range of the function is all possible -value of the function.
Observe the graph of the function :
The graph of the function lies on or above the line .
Therefore, the range of the function is .
Option A is the correct choice.
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-value of the function.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a4f8c5730f9412f995989427f42e70fc.png\")
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