## Precalculus (6th Edition) Blitzer

$0$; $0$; zeros
RECALL: (i) The x-intercepts of a function are the x-values for which the value of the function is zero. (ii) The x-intercepts of a function are also called the function's zeros. Since $-1$ and $3$ are x-intercepts of the function $f$, then $f(-1)=0$ and $f(3) = 0$. Therefore. the missing expressions in the given statements are: $0$; $0$; zeros