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Graphing Logarithmic Functions

Graphing Logarithmic Functions 1.13 - Solution

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a

In order to determine assume and from that point on the -axis, go up vertically until you reach the graph. When you intersect the graph, take note of the corresponding -value on the -axis.

From the graph, we see that

b

We'll determine in the same way. Start from on the -axis, go vertically up to the graph and take note of the intersection point's -value.

Thus,

c

In this case, we need to determine the -value that satisfies the equation Therefore, start at on the graph and identify the corresponding -value.

We see that has to be between and for the expression the be equal to The arrow seems to point a little over the middle, which can be read as a value between , and for instance,