Chapter 5 - Section 5.4 - More Trigonometric Graphs - 5.4 Exercises - Page 438: 4

III

Questions 3 through 8 asks for a match with the function with one of the graphs labeled I - VI Given $f(x) = \sec 2x$ $\sec x = \frac{1}{\cos x}$ At x = 0, $\sec x = 1$ There is also an asymptote at $x = \frac{\pi}{4}$ The only graph that has that point and asymptote is graph III