Chapter 5 - Trigonometric Functions - Section 5.5 Graphs of the Tangent, Cotangent, Cosecant, and Secant Functions - 5.5 Assess Your Understanding - Page 442: 28

Answer

See graph, domain $\{x| x\ne k\pi+\frac{\pi}{2}\}$ (k is an integer), range $\{y|y\le-4\ or\ y\ge4\}$.

Work Step by Step

1. See graph for $y=-4sec(x)$. 2. We can identify the domain $\{x| x\ne k\pi+\frac{\pi}{2}\}$ (k is an integer), range $\{y|y\le-4\ or\ y\ge4\}$.