General Mathematics Quarter 1 – Module 28: Solving Real-Life Problems Involving Logarithmic Functions, Equations and Inequalities

Previously, you learned how to simplify and solve logarithmic functions, equations, and inequalities. Also, you already have the background of the properties, techniques, and steps in solving problems using logarithmic functions. You are now aware of the use of the Richter Scale to find the magnitude of an earthquake, determining for the acidity and pH level of a solution concentration, computing the population, and solving compound interest.

It is not enough that you know the formulas, what matters most is you know how to apply it in real-life situations. In this module, you will gain a deeper understanding of the application of a logarithmic function, equation, and inequalities to real-life situations.

You will realize that aside from the mentioned real-life problem above, there are still other real-life situations where you could use logarithm like computing for the decay rate, how bacteria and viruses multiply, and on how to get the age of a decomposed bone by knowing the carbon-14 content. You might also find it interesting to solve for your future savings account or how you could possibly get a higher amount if you will save earlier.

After going through this module, you are expected to:

1. recall how to solve logarithmic equations and inequalities; and

2. solve problems involving logarithmic functions, equations, and inequalities.


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