To determine the ending number at which we evaluate the function, we look at the given sum notation:
[tex]\[ \sum_{x=2}^5 (x^2 + 4x - 4) \][/tex]
Within this summation, the limits of summation indicate the range over which we evaluate the function \( x^2 + 4x - 4 \). The expression \(\sum_{x=2}^5\) tells us to sum the function values from \( x = 2 \) to \( x = 5 \).
Thus:
- The starting value is \( x = 2 \).
- The ending value is \( x = 5 \).
So, the ending number at which we evaluate the function is [tex]\( 5 \)[/tex].
