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4.5.1: Graphs and Properties of Logarithmic Functions (Exercises)

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    35264
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    SECTION 4.5 PROBLEM SET: GRAPHS AND PROPERTIES OF LOGARITHMIC FUNCTIONS

    Questions 1 – 3: For each of the following functions

    1. Sketch a reasonably accurate graph showing the shape of the graph of the function
    2. State the domain
    3. State the range
    4. State whether the graph has a vertical asymptote or a horizontal asymptote and write the equation of that asymptote
    5. Does the graph have an x-intercept or a y-intercept asymptote? Write the coordinates of the x-intercept or the y-intercept.
    1. \(y=\ln x\)
      1. Sketch the graph below
    1. domain: ________
    2. range: ________
    3. Is the asymptote horizontal or vertical? _________
      Equation of the asymptote: ________
    4. Coordinates of x-intercept or y-intercept: ________
    1. \(y=\log x\)
      1. Sketch the graph below
    1. domain: ________
    2. range: ________
    3. Is the asymptote horizontal or vertical? _________
      Equation of the asymptote: ________
    4. Coordinates of x-intercept or y-intercept: ________
    1. \(y=\log_{0.8} x\)
      1. Sketch the graph below
    1. domain: ________
    2. range: ________
    3. Is the asymptote horizontal or vertical? _________
      Equation of the asymptote: ________
    4. Coordinates of x-intercept or y-intercept: ________

    Questions 4 - 5: For the pair of inverse functions \(y = e^x\) and \(y = \ln x\)

    1. Sketch a reasonably accurate graph showing the shape of the graph of the function
    2. State the domain
    3. State the range
    4. State whether the graph has a vertical asymptote or a horizontal asymptote and write the equation of that asymptote
    5. Does the graph have an x-intercept or a y-intercept asymptote? Write the coordinates of the xintercept or the y-intercept.
    1. \(y=e^x\)
      1. Sketch the graph below
    1. domain: ________
    2. range: ________
    3. Is the asymptote horizontal or vertical? _________
      Equation of the asymptote: ________
    4. Coordinates of x-intercept or y-intercept: ________
    1. \(y=\ln x\)
      1. Sketch the graph below
    1. domain: ________
    2. range: ________
    3. Is the asymptote horizontal or vertical? _________
      Equation of the asymptote: ________
    4. Coordinates of x-intercept or y-intercept: ________

    Questions 6-11: Match the graph with the function.

    Choose the function from the list below and write it on the line underneath the graph.

    Hint: To match the function and the graph, identify these properties of the graph and function

    • Is the function increasing decreasing?
    • Examine the asymptote
    • Determine the x or y intercept

    \[\mathrm{y}=3\left(2^{x}\right) \quad y=5\left(0.4^{x}\right) \quad y=\log _{2}(x) \quad y=\log _{1 / 2}(x) \quad y=3 e^{-0.6 x} \quad y=5 e^{0.3 x} \nonumber \]

    1. Function: ________

    5.7.4Function6.png

    1. Function: ________

    5.7.4Function7.png

    1. Function: ________

    5.7.4Function8.png

    1. Function: ________

    5.7.4Function9.png

    1. Function: ________

    5.7.4Function10.png

    1. Function: ________

    5.7.4Function11.png


    This page titled 4.5.1: Graphs and Properties of Logarithmic Functions (Exercises) is shared under a CC BY 4.0 license and was authored, remixed, and/or curated by Rupinder Sekhon and Roberta Bloom via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.