## Algebra and Trigonometry 10th Edition

The function is constant on the interval $(-∞,∞)$
For any $x_1$ and $x_2$ in interval $(-∞,∞)$, $f(x_1)=f(x_2)$ $f(-4)=3$ $f(0)=3$ $f(2)=3$ $f(5)=3$