Question 316284
[-4,10] means that -4 and -10 are included portions of the region. Typcially this is graphed with a filled in circle. 
{{{drawing(300,300,-10,10,-10,10,grid(1),
circle(-4,3,.3),
circle(10,-3,.3),
circle(-4,3,.25),
circle(10,-3,.25),
circle(-4,3,.2),
circle(10,-3,.2),
circle(-4,3,.1),
circle(10,-3,.1),
circle(-4,3,.05),
circle(10,-3,.05),
circle(-4,3,.02),
circle(10,-3,.02),
line(-4,3,10,-3),
graph(300,300,-10,10,-10,10,0))}}}
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(-4,10] means that -10 is included but -4 is not. 
Typically this is graphed with an open circle to signify that it's not included.
{{{drawing(300,300,-10,10,-10,10,grid(1),
circle(-4,3,.3),
circle(10,-3,.3),
circle(10,-3,.25),
circle(10,-3,.2),

circle(10,-3,.1),

circle(10,-3,.05),
line(-4,3,10,-3),
circle(10,-3,.02),
graph(300,300,-10,10,-10,10,0))}}}
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[-4,10) : 10 not included, -4 included
{{{drawing(300,300,-10,10,-10,10,grid(1),
circle(-4,3,.3),
circle(-4,3,.25),
circle(-4,3,.2),
circle(-4,3,.1),
circle(10,-3,.05),
line(-4,3,10,-3),
circle(10,-3,.3),
graph(300,300,-10,10,-10,10,0))}}}
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(-4,-10) : Neither -4 nor 10 are included. 
{{{drawing(300,300,-10,10,-10,10,grid(1),
circle(-4,3,.3),
circle(10,-3,.3),
line(-4,3,10,-3),
graph(300,300,-10,10,-10,10,0))}}}
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As an example, the equation 
{{{x+4>0}}}
{{{x>-4}}} would show the interval as an open circle or "{" bracket.
while 
{{{x+4>= 0}}}
{{{x>=0}}} would be solid or "[" bracket.