Level:
Project ID:
9000022305
Accepted:
1
Clonable:
0
Easy:
1
Find the domain of the following expression.
\[
\sqrt{-x^{2 } + 16x - 63}
\]
\(\left [ 7,9\right ] \)
\(\left (-\infty ,7\right )\cup \left (9,\infty \right )\)
\(\left (-\infty ,-7\right ] \cup \left [ 9,\infty \right )\)
\(\left (7,9\right )\)
\(\left [ -7,9\right ] \)