## College Algebra 7th Edition

(a) $x$-axis (b) $y$-axis
(a) The graph of $y=-f(x)$ is obtained from the graph of $y=f(x)$ by reflecting in the ___$x$-axis___. (b) The graph of $y=f(-x)$ is obtained from the graph of $y=f(x)$ by reflecting in the ___$y$-axis___.