MAT-121: COLLEGE ALGEBRA
Written Assignment 5
2.5 points each
For the following exercises, determine whether the equation represents exponential growth, exponential decay, or neither. Explain.
For the following exercises, find the formula for an exponential function that passes through the two points given. Round results to 3 decimal places.
For the following exercises, use the compound interest formula, .
For the following exercises, graph the function and its reflection about the y-axis on the same axes, and give the y-intercept.
For the following exercises, graph and its transformation on the same axes. Give the horizontal asymptote, the domain, and the range.
For the following exercises, start with the graph of . Then write a function that results from the given transformation.
For the following exercises, evaluate the exponential functions for the indicated value of x. Round your result to 3 decimal places.
For the following exercises, rewrite each equation in exponential form.
For the following exercises, rewrite each equation in logarithmic form.
For the following exercises, solve for x by converting the logarithmic equation to exponential form.
For the following exercises, use the definition of common and natural logarithms to simplify. Round answer to 4 decimal places
For the following exercises, evaluate the base b logarithmic expression without using a calculator.
For the following exercises, evaluate the common logarithmic expression without using a calculator.
For the following exercises, evaluate the natural logarithmic expression without using a calculator.
For the following exercises, evaluate each expression using a calculator. Round to the nearest thousandth.
For the following exercises, state the domain, range, the vertical asymptote, x– and y-intercepts (if they exist, if they do not exist write
DNE), and end behavior of the function.
For the following exercises, sketch the graph of the indicated function.
For the following exercises, use a graphing calculator to find approximate solutions to each equation. If you do not have a graphing calculator then use the following site’s online graphing calculator. You will want to use the “Intersection” function. Round results to 4 decimal places
For the following problem, start with the graph of . Then write a function, g(x), that results from the given transformation. Graph both f(x) and its transformation on the same axes.
For the following exercises, expand each logarithm as much as possible. Rewrite each expression as a sum, difference, or product of logs.
For the following exercises, condense to a single logarithm if possible.
For the following exercises, use the properties of logarithms to expand each logarithm as much as possible. Rewrite each expression as a sum, difference, or product of logs.
For the following exercises, rewrite each expression as an equivalent ratio of logs using the indicated base.
29. to base 10
For the following exercises, suppose and . Use the change-of-base formula along with properties of logarithms to rewrite each expression in terms of m and n. Show the steps for solving.
For the following exercises, use the change-of-base formula to evaluate each expression as a quotient of natural logs. Use a calculator to approximate each to five decimal places.
32. Use the product rule for logarithms to find all x values such that . Show the steps for solving.
For the following exercises, use like bases to solve the exponential equation.
For the following exercises, use logarithms to solve. Round your results to 4 decimal places.
For the following exercises, use the definition of a logarithm to solve the equation.
For the following exercises, use the one-to-one property of logarithms to solve. Give an exact value for the result.
For the following exercises, solve each equation for x.
For the following exercises, solve for the indicated value.
38. An account with an initial deposit of $10,500 earns 4.25% annual interest, compounded continuously. How long will it take until the account is worth twice the initial deposit? Round your answer to the nearest tenth. Use the formula
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