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Second Derivative Test Locate the critical points of the following functions. Then use the Second Derivative Test to determine (if possible) whether they correspond to
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- x4 -289 Consider the function f(x) = 2 X-17 Complete parts a and b below. a. Analyze lim f(x) and lim f(x), and then identify the horizontal asymptotes. x+x X--∞ lim 4 X-289 2 X∞ X-17 X - 289 lim = 2 ... X∞ X - 17 Identify the horizontal asymptotes. Select the correct choice and, if necessary, fill in the answer box(es) to complete your choice. A. The function has a horizontal asymptote at y = B. The function has two horizontal asymptotes. The top asymptote is y = and the bottom asymptote is y = ☐ . C. The function has no horizontal asymptotes. b. Find the vertical asymptotes. For each vertical asymptote x = a, evaluate lim f(x) and lim f(x). Select the correct choice and, if necessary, fill in the answer boxes to complete your choice. earrow_forwardExplain why lim x²-2x-35 X-7 X-7 lim (x+5), and then evaluate lim X-7 x² -2x-35 x-7 x-7 Choose the correct answer below. A. x²-2x-35 The limits lim X-7 X-7 and lim (x+5) equal the same number when evaluated using X-7 direct substitution. B. Since each limit approaches 7, it follows that the limits are equal. C. The numerator of the expression X-2x-35 X-7 simplifies to x + 5 for all x, so the limits are equal. D. Since x²-2x-35 X-7 = x + 5 whenever x 7, it follows that the two expressions evaluate to the same number as x approaches 7. Now evaluate the limit. x²-2x-35 lim X-7 X-7 = (Simplify your answer.)arrow_forwardA function f is even if f(x) = f(x) for all x in the domain of f. If f is even, with lim f(x) = 4 and x-6+ lim f(x)=-3, find the following limits. X-6 a. lim f(x) b. +9-←x lim f(x) X-6 a. lim f(x)= +9-←x (Simplify your answer.) b. lim f(x)= X→-6 (Simplify your answer.) ...arrow_forwardEvaluate the following limit. lim X-X (10+19) Select the correct answer below and, if necessary, fill in the answer box within your choice. 10 A. lim 10+ = 2 ☐ (Type an integer or a simplified fraction.) X-∞ B. The limit does not exist.arrow_forwardFind the following limit or state that it does not exist. x² +x-20 lim x-4 x-4 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. lim x²+x-20 x-4 (Type an exact answer.) x→4 B. The limit does not exist.arrow_forwardDetermine the intervals on which the following function is continuous. f(x) = x - 5x + 6 2 X-9 On what interval(s) is f continuous? (Simplify your answer. Type your answer in interval notation. Use a comma to separate answers as needed.)arrow_forwardFind the following limit or state that it does not exist. 2 3x² +7x+2 lim X-2 6x-8 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. lim 3x²+7x+2 6x-8 (Simplify your answer.) X-2 B. The limit does not exist.arrow_forwardFind the following limit or state that it does not exist. X-2 lim x-2 5x+6 - 4 Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. lim X-2 X-2 15x+6 = (Type an exact answer.) - 4 B. The limit does not exist.arrow_forward(a) Sketch the graph of a function that is not continuous at 1, but is defined at 1. (b) Sketch the graph of a function that is not continuous at 1, but has a limit at 1. (a) Which of the following graphs shows a function that is not continuous at 1, but is defined at 1. ○ A. Ay ✓ B. 5 X ✓ (b) Which of the following graphs shows a function that is not continuous at 1, but has a limit at 1. ○ A. B. X y 5- -5 5 ✓ ✓ 5 ☑ 5 X y ☑ LVarrow_forwardIf lim f(x)=L and lim f(x) = M, where L and M are finite real numbers, then what must be true about L x-a x-a+ and M in order for lim f(x) to exist? x-a Choose the correct answer below. A. L = M B. LMarrow_forwardDetermine the following limit, using ∞ or - ∞ when appropriate, or state that it does not exist. lim csc 0 Select the correct choice below, and fill in the answer box if necessary. lim csc 0 = ○ A. 0→⭑ B. The limit does not exist and is neither ∞ nor - ∞.arrow_forwardIs the function f(x) continuous at x = 1? (x) 7 6 5 4 3 2 1 0 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10 -1 -2 -3 -4 -5 -6 -71 Select the correct answer below: The function f(x) is continuous at x = 1. The right limit does not equal the left limit. Therefore, the function is not continuous. The function f(x) is discontinuous at x = 1. We cannot tell if the function is continuous or discontinuous.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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