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Find limits of rational functions as x → ∞

12th grade (Year 13 in England) · 16 questions · Common Core: HSF.IF.C.7.D · England: A-level Pure Mathematics

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  1. Question 1

    What happens to (2x + 1)/(3x² − 3) as x → ∞?

    • A. 0
    • B. 2/3
    • C. No finite limit (it grows without bound)
  2. Question 2

    Find the limit as x → ∞ of (9x² + 3)/(4x² − 2x − 1). Give a fraction if needed.

    Answer(as a fraction)

  3. Question 3

    What happens to (6x³ + 2)/(x² − 3) as x → ∞?

    • A. 0
    • B. 6
    • C. No finite limit (it grows without bound)
  4. Question 4

    Find the limit as x → ∞ of (−5x² − 7x + 3)/(9x² − 3x − 1). Give a fraction if needed.

    Answer(as a fraction)

  5. Question 5

    What happens to (3x² + 1)/(6x² − 3) as x → ∞?

    • A. 0
    • B. 1/2
    • C. No finite limit (it grows without bound)
  6. Question 6

    Find the limit as x → ∞ of (x² − 7x + 3)/(6x² + 9x − 1). Give a fraction if needed.

    Answer(as a fraction)

  7. Question 7

    What happens to (6x² + 1)/(5x² − 3) as x → ∞?

    • A. 0
    • B. 6/5
    • C. No finite limit (it grows without bound)
  8. Question 8

    Find the limit as x → ∞ of (−x² − 4x + 3)/(9x² − x − 1). Give a fraction if needed.

    Answer(as a fraction)

  9. Question 9

    What happens to (4x² + 1)/(5x² − 3) as x → ∞?

    • A. 0
    • B. 4/5
    • C. No finite limit (it grows without bound)
  10. Question 10

    Find the limit as x → ∞ of (−x² − 7x + 3)/(3x² − 3x − 1). Give a fraction if needed.

    Answer(as a fraction)

  11. Question 11

    What happens to (6x³ + 2)/(6x² − 3) as x → ∞?

    • A. 0
    • B. 1
    • C. No finite limit (it grows without bound)
  12. Question 12

    Find the limit as x → ∞ of (7x² − 5x + 3)/(x² − 5x − 1). Give a fraction if needed.

    Answer(as a fraction)

  13. Question 13

    What happens to (4x + 1)/(2x² − 3) as x → ∞?

    • A. 0
    • B. 2
    • C. No finite limit (it grows without bound)
  14. Question 14

    Find the limit as x → ∞ of (3x² + x + 3)/(8x² − 4x − 1). Give a fraction if needed.

    Answer(as a fraction)

  15. Question 15

    What happens to (x³ + 2)/(5x² − 3) as x → ∞?

    • A. 0
    • B. 1/5
    • C. No finite limit (it grows without bound)
  16. Question 16

    Find the limit as x → ∞ of (4x² + 4x + 3)/(3x² − 5x − 1). Give a fraction if needed.

    Answer(as a fraction)

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  1. 0
  2. 9/4
  3. No finite limit (it grows without bound)
  4. -5/9
  5. 1/2
  6. 1/6
  7. 6/5
  8. -1/9
  9. 4/5
  10. -1/3
  11. No finite limit (it grows without bound)
  12. 7
  13. 0
  14. 3/8
  15. No finite limit (it grows without bound)
  16. 4/3