When graphing exponential decay, it is always a good idea to make a table of values and you could look for at least 5 points that you can use to make the graph. In the table below, we use 6 points.
It is also a good idea to choose both negative and positive values for x, especially numbers that are opposites. For example, notice how we chose x = -1 and x = 1.
x | ||
-2 | ||
-1 | ||
0 | (0, 20) | |
1 | (1, 10) | |
2 | (2, 5) | |
3 | (3, 2.5) |
In the graph below, each square along the x-axis represents 1 unit and each square along the y-axis represents 10 units. Notice that for an exponential decay, as x increases, y decreases exponentially or decreases rapidly.
Jul 06, 18 12:29 PM
Learn how to solve two types of logarithmic equations
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Jul 06, 18 12:29 PM
Learn how to solve two types of logarithmic equations
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