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Horizontal areas between curves

AP.CALC: CHA‑5 (EU), CHA‑5.A (LO), CHA‑5.A.2 (EK)


The curve x, equals, start fraction, 18, divided by, square root of, 9, y, plus, 19, end square root, end fraction is graphed.
What is the area bounded by the curve, the y-axis, the line y, equals, 5 and the line y, equals, 9?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
square units