I have the graphs, I just have questions. I don't understand how these graphs were formed. Please explain how this is done. Where do the lines intersect? Aren't there coordinates?
2. f(x)=3x - 2
4. f(x)= log2x.
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( I will give a detailed explanation for the first problem. This will help you understand the other two as well. I will give shorter explanations to the other two problems. Highlighted phrase is important to understand)
You only need the general shape of the graph. So you will analyze the given function at extreme values of x to get the general appearance ...
How to plot graphs without using a graphing utility? That is the question that is answered in this problem set. Several examples involving exponential functions and logarithmic functions are used to show how one can analyze the functions to draw their graphs without using a graphing utility. Understanding how to plot/sketch graphs is very important in the field of mathematics and other sciences and this solution will give you a head start on learning that.