Question 1142567
{{{system(y<=-x^2+4,y>=x^2-2x-3)}}}

Draw the graphs of the boundaries, which are the equations
formed by replacing the inequality symbols by equal signs: 
{{{system(y=-x^2+4,y=x^2-2x-3)}}}

{{{drawing(400,400,-10,10,-10,10,
graph(400,400,-10,10,-10,10,-x^2+4),
graph(400,400,-10,10,-10,10,x^2-2x-3),



line(-1.43649167,1.93649167,-1.43649167,1.93649167),line(-1.33649167,2.21379001,-1.33649167,1.45919334),line(-1.23649167,2.47108834,-1.23649167,1.001895),line(-1.13649167,2.70838668,-1.13649167,0.56459667),line(-1.03649167,2.92568501,-1.03649167,0.14729833),line(-0.93649167,3.12298335,-0.93649167,-0.25),line(-0.83649167,3.30028168,-0.83649167,-0.62729834),line(-0.73649167,3.45758002,-0.73649167,-0.98459667),line(-0.63649167,3.59487835,-0.63649167,-1.321895),line(-0.53649167,3.71217668,-0.53649167,-1.63919334),line(-0.43649167,3.80947502,-0.43649167,-1.93649167),line(-0.33649167,3.88677335,-0.33649167,-2.21379001),line(-0.23649167,3.94407169,-0.23649167,-2.47108834),line(-0.13649167,3.98137002,-0.13649167,-2.70838668),line(-0.036491673,3.99866836,-0.036491673,-2.92568501),line(0.063508327,3.99596669,0.063508327,-3.12298335),line(0.16350833,3.97326503,0.16350833,-3.30028168),line(0.26350833,3.93056336,0.26350833,-3.45758002),line(0.36350833,3.8678617,0.36350833,-3.59487835),line(0.46350833,3.78516003,0.46350833,-3.71217668),line(0.56350833,3.68245837,0.56350833,-3.80947502),line(0.66350833,3.5597567,0.66350833,-3.88677335),line(0.76350833,3.41705503,0.76350833,-3.94407169),line(0.86350833,3.25435337,0.86350833,-3.98137002),line(0.96350833,3.0716517,0.96350833,-3.99866836),line(1.06350833,2.86895004,1.06350833,-3.99596669),line(1.16350833,2.64624837,1.16350833,-3.97326503),line(1.26350833,2.40354671,1.26350833,-3.93056336),line(1.36350833,2.14084504,1.36350833,-3.8678617),line(1.46350833,1.85814338,1.46350833,-3.78516003),line(1.56350833,1.55544171,1.56350833,-3.68245837),line(1.66350833,1.23274005,1.66350833,-3.5597567),line(1.76350833,0.89003838,1.76350833,-3.41705503),line(1.86350833,0.52733672,1.86350833,-3.25435337),line(1.96350833,0.14463505,1.96350833,-3.0716517),line(2.06350833,-0.25806662,2.06350833,-2.86895004),line(2.16350833,-0.68076828,2.16350833,-2.64624837),line(2.26350833,-1.12346995,2.26350833,-2.40354671),line(2.36350833,-1.58617161,2.36350833,-2.14084504)







)}}}