Domain of y = sqrt(x + 6) - 7 <br><br> Finding domain is trying to check the following valid conditions <br> <br> condition 1: check for x such that the value in square root must greater or equal to 0 <br>(applicable here) <br>x + 6 >= 0<br>x > -6 ... this is the answer<br><br> condition 2: check for x such that the divisor must not be zero <br>(not applicable here) <br><br> condition 3(misc) : check some functions <br>for example ... log(0) is invalid...<br>
