Chapter 4 - Polynomial and Rational Functions - 4.1 Polynomial Functions and Models - 4.1 Assess Your Understanding - Page 184: 5

True

$f(x)=0$ is the $x$-axis. The given statement is true because the $x$-intercepts are the $x$-coordinates of the points of intersection of the $x$-axis and the graph of the function itself. This means that if you substitute each $x$-intercept into $f(x)$, the value of the function is $0$ (i.e., $f(x)=0)$.