59.x-intercept: 0; y-intercept: 0; vertical asymptote: x=3; horizontal asymptote: y=2; symmetry: none. The graph is above the line y=2 on (3,∞) and below it on (−∞,3).
61.x-intercept: 0; y-intercept: 0; vertical asymptotes: x=−2 and x=2; horizontal asymptote: x-axis. The graph is symmetric with respect to origin. The graph is above the x-axis on (−2,0)∪(2,∞) and below the x-axis on (−∞,−2)∪(0,2).
63.x-intercept: 0; y-intercept: 0; vertical asymptotes: x=−3 and x=3; horizontal asymptote: y=−2. The graph is above the line y=−2 on (−3,3) and below it on (−∞,−3)∪(3,∞).
65. No x-intercept; y-intercept: −1; vertical asymptotes: x=−2–√ and x=2–√; horizontal asymptote: x-axis. The graph is above the x-axis on (−∞,−2–√)∪(2–√,∞) and below the x-axis on (−2–√,2–√).
67.x-intercept: −1;y-intercept: −16; vertical asymptotes: x=−3 and x=2; horizontal asymptote: x-axis. The graph is above the x-axis on (−3,−1)∪(2,∞) and below the x-axis on (−∞,−3)∪(−1,2).
69.x-intercept: 0; y-intercept: 0; no vertical asymptote; horizontal asymptote: y=1. The graph is above the x-axis on (−∞,0)∪(0,∞) and below the line y=1 on (−∞,∞).
71.x-intercept: ±2; no y-intercept: a hole at (0,49); vertical asymptotes: x=−3 and x=3; horizontal asymptote: y=1. The graph is above the line y=1 on (−∞,−3)∪(3,∞) and below it on (−3,0)∪(0,3).
73. No x-intercept; y-intercept: −2; a hole at (2,0); no vertical asymptote; no horizontal asymptote. The graph is above the x-axis on (2,∞) and below the x-axis on (−∞,2).