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The Natural Base e

The Natural Base e 1.8 - Solution

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a
We are looking for the solution to the equation , which means the -value for which the graph of has an -value equal to . Thus, we can find by drawing a straight line for and see where it intersects the graph. Then we read the -value.

We see that the -value lies between and , which, rounded to the nearest integer, equals The solution to the equation is then .

b
Let's rewrite as , which means that in the function and obtain the value of . You then read the graph's -value when the -value equals .

From the graph you see that the -value lies approximately at for which gives that