Logarithmic Misconceptions and Meaning-Making. Paper Example

Published: 2023-08-20
Logarithmic Misconceptions and Meaning-Making. Paper Example
Essay type:  Quantitative research papers
Categories:  Knowledge Mathematics
Pages: 2
Wordcount: 521 words
5 min read

Give an example of an exponential equation with a negative number as its solution and explain the graphing of a logarithmic function without beginning with an exponential graph.

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An exponential equation with a negative solution is shown below;

5^x =1/5. In this case x= -1

An inverse function of an exponential function, such as y=log10 X, becomes a logarithmic function. One can first form the values of x and y. According to the logarithmic equation, X can assume values of X to find y at different points (Buchanan, 2018). The value of y is found after assuming the values of x, as portrayed in the table below.

x 1/9 1 27

y=log10 x -2 0 3

Label and draw the vertical asymptote, x=0, then plot the x-intercept (1,0). The key points are to be plotted (b,1). After plotting the points, a smooth curve is drawn through the points. The domain is stated as (0,∞ ), vertical asymptote, x=0, and range (-∞,∞).

When the base is not written, assumptions are made that the log is to base 10. Additionally, the logarithmic function, in this case, y=log b (x), can be shifted h units to the horizontal and k units to the vertical with the equation y=log b (x+h) + k. In the case of horizontal shift, h>0, the graph shifts to the left. In h<0, the graph shifts to the right (Buchanan, 2018). In the vertical shift, k>0, the graph shifts upward while in k<0, the graph shifts downward.

Describe mathematical arguments and reasons to convince a friend that

Log (M + N) ≠ log M + log N.

This logarithmic equation may look realistic due to the previous understanding concerning the distribution property. However, that knowledge of the popular distribution property does not apply to logarithms. The logarithm law states that log (ab) = log (a) + log (b).

What misconceptions that the problems might present to learners and the reason why it’s crucial to address the misunderstanding.

The learners find it challenging to understand the fact that distribution property cannot be applied in logarithms. Again, there can be a misconception of differences in the graphs as a result of an exponential function and logarithmic function. Addressing misconceptions at the initial stages is essential because it enables learners to differentiate the most confusing concepts in the topic (Weber, 2016). The importance of this is that the students get in-depth knowledge that allows them to tackle logarithmic questions appropriately.

How to answer a learner that sees solving of this problem as useless

I will first ensure that I explain the importance and applicability of the concepts in the daily practical areas. I will also ensure that the student understands the basic mathematics vocabularies and concepts concerning logarithms. This is core since it enhances that student’s ability to reason. According to Weber (2016), the capability enables the creation of proof, definitions, and theorems that help in the analysis of several complex systems and concerns in many practical situations.


Buchanan, J. R. (2018). Exponential and Logarithmic Functions.

Weber, C. (2016). Making logarithms accessible–operational and structural basic models for logarithms. Journal für Mathematik-Didaktik, 37(1), 69-98. https://link.springer.com/article/10.1007/s13138-016-0104-6

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