Math question trivia

<p>Hi guys this math question is rather easy but i just need to clarify a few pointers. Look at this question:</p>

<p>Which of the functions graphed below has a range of (–5, 5)?</p>

<p>When they ask for the range of (-5,5) do they mean exclusive of -5 & 5? The sparknotes question I did included -5 but excluded 5. In my school, i was thought "()" brackets meant they excluded the number and "[]" brackets included the numbers within them.</p>

<p>I would really appreciate your help. THANK IN ADVANCE!</p>

<p>yeh, "()" brackets mean they exclude the number and "[]" brackets include the numbers. maybe sparknotes is wrong</p>