The function f(x) = x2 - 4x + 5 is shown on the graph. Which statement about the function is true?

1. The domain of the function is all real numbers less
than or equal to - 2.

2. The domain of the function is all real numbers less
than or equal to 9.

3. The range of the function is all real numbers less than
or equal to -2.

4. The range of the function is all real numbers less than
or equal to 9.