Question 1043723
graph 

f(x)={-x^2 if x<0
          x+3 if x greater than or equal to 0}
                     
both go in brackets
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This site cannot show a segmented graph on
a single set of x/y axes.
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I can show you the pieces for your problem.
You will have to join them on one set of axes.
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{{{graph(400,400,-15,0,-15,15,-x^2)}}}
{{{graph(400,400,0,15,-15,15,x+3)}}}
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Cheers,
Stan H.
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