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Sketch the graph of a function f that satisfies all of the given conditions.lim x→6+ f(x) = 7, lim x→6− f(x) = 5, lim x→−2 f(x) = 5, f(6) = 6, f(−2) = 4

Question

Sketch the graph of a function f that satisfies all of the given conditions.

  • limx6+f(x)=7 \lim_{x \to 6^+} f(x) = 7
  • limx6f(x)=5 \lim_{x \to 6^-} f(x) = 5
  • limx2f(x)=5 \lim_{x \to -2} f(x) = 5
  • f(6)=6 f(6) = 6
  • f(2)=4 f(-2) = 4
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Solution

To sketch the graph of the function f(x) f(x) that satisfies the provided conditions, we can break down the requirements and analyze each one.

1. Break Down the Problem

  1. Limits at x=6 x = 6 :

    • limx6+f(x)=7 \lim_{x \to 6^+} f(x) = 7 (right-hand limit)
    • limx6f(x)=5 \lim_{x \to 6^-} f(x) = 5 (left-hand limit)
    • f(6)=6 f(6) = 6 (the value of the function at x=6 x = 6 )
  2. Limit at x=2 x = -2 :

    • limx2f(x)=5 \lim_{x \to -2} f(x) = 5 (two-sided limit)
    • f(2)=4 f(-2) = 4 (the value of the function at x=2 x = -2 )

2. Relevant Concepts

  • To represent the limits and function values, we will use:
    • Open circles to denote limits where the function does not equal the limit.
    • Solid dots to indicate the actual value of the function at certain points.

3. Analysis and Detail

  1. At x=6 x = 6 :

    • As x x approaches 6 6 from the right, f(x) f(x) approaches 7 7 , but at x=6 x = 6 itself, the function takes the value 6 6 .
    • Therefore, we will place an open circle at the point (6,7) (6, 7) and a solid dot at (6,6) (6, 6) .
  2. At x=2 x = -2 :

    • As x x approaches 2 -2 , f(x) f(x) approaches 5 5 , but at x=2 x = -2 , the value of the function is 4 4 .
    • We will place an open circle at the point (2,5) (-2, 5) and a solid dot at (2,4) (-2, 4) .
  3. Limit at 2 -2 also sets the behavior of the graph approaching this point from both the left and the right.

4. Verify and Summarize

  • We have established the limits and values:
    • (6,7) (6, 7) is an open circle, (6,6) (6, 6) is a solid dot.
    • (2,5) (-2, 5) is an open circle, (2,4) (-2, 4) is a solid dot.
  • The function should be continuous except at the specified points.

Final Answer

The sketch of the function f(x) f(x) will include:

  • An open circle at (6,7) (6, 7) .
  • A solid dot at (6,6) (6, 6) .
  • An open circle at (2,5) (-2, 5) .
  • A solid dot at (2,4) (-2, 4) .
  • The graph can be further drawn such that it approaches 5 5 as x x approaches 2 -2 from both sides, and shows the different behaviors around x=6 x = 6 .

Please visualize the graph based on the description above, considering how the function behaves at and around those key points.

This problem has been solved

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