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Prerequisite Assignment: MyMathLab® Study Plan for Week 2 Checkpoint

1. Click the CheckPoint tab.
2. Click External Content Launch to access MyMathLab®.
3. After earning at least 60% of the Mastery Points in the MyMathLab® Study Plan for Week 2 Checkpoint, complete the Week 2 Checkpoint in MyMathLab®.

Important Note: It is highly recommended that you earn all of the possible Mastery Points in the MyMathLab® Study Plan for Week 2 Checkpoint. This Weekly Checkpoint contains 15 questions. You have one attempt to complete the Weekly Checkpoints and do not have access to the Help Me Solve This or View an Example features.

MTH 220 Week 2 Checkpoint

Use the graph of the rational function to complete the following statement.

Find the vertical asymptotes, if any, and the values of x corresponding to holes, if any, of the graph of the rational function.

Find the horizontal asymptote, if any, of the graph of the rational function.

The function models the pH level, f(x), of a mouth x minutes after eating food containing sugar. The graph of this function is shown to the right. Complete parts (a) through (e).

Graph the following function by making a table of coordinates. If applicable, use a graphing utility to confirm your hand-drawn graph.

Use transformations of the graph of f left parenthesis x right parenthesis equals 4 Superscript x

to graph the function g(x) given below. Graph and give the equation of the asymptote. Use the graph to determine the domain and range of g(x).

Evaluate the following expression without using a calculator.

Evaluate the expression without using a calculator.

Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Evaluate logarithmic expressions if possible.

The loudness level of a sound can be expressed by comparing the sound’s intensity to the intensity of a sound barely audible to the human ear. The formula describes the loudness level of a sound, D, in decibels, where I is the intensity of the sound, in watts per meter squared,and I 0is the intensity of a sound barely audible to the human ear. Use this information to answer parts (a) and (b) below.

Solve the following exponential equation by expressing each side as a power of the same base and then equating exponents.

Complete the table shown to the right for the population growth model for a certain country.