In Exercises 39-44, (a) find a power function end behavior model for f. (b) Identify any horizontal asymptotes. 39. f(x)

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In Exercises 39 44 A Find A Power Function End Behavior Model For F B Identify Any Horizontal Asymptotes 39 F X 1 (79.03 KiB) Viewed 13 times

In Exercises 39-44, (a) find a power function end behavior model for f. (b) Identify any horizontal asymptotes. 39. f(x) = 3x² - 2x + 1 40. f(x) = -4x³ + x² - 2x - 1 (a)-4x³ (b) None (a) 3x² (b) None x-2 3x²-x+ 5 41. f(x) = 2x² + 3x − 5 42. f(x) = x² - 4 - 30 3 (b) y = 3 (a) (b) y = 0 2x 43. f(x) 4x³ - 2x + 1 = 44. f(x) = -x4 + 2x² + x - 3 x² - 4 (a) 4x² (b) None x 2 (a)-2² (b) None In Exercises 45-48, find (a) a simple basic function as a right end be- havior model and (b) a simple basic function as a left end behavior model for the function. 45. y e- 2x (a) eª (b)-2x 47. y = x + In |x| (a) x (b)x) 46. y=x² + e* (a) x² (b) ex 48. y = x² + sinx (a) x² (b) x² In Exercises 49-52, use the graph of y = f(1/x) to find lim, f(x) and limf(x). 49. f(x) = xe* At : At-:0 50. f(x) = x²ex At ∞: 0 At-00:00