To complete the table for the function \( y = 0.2^x \), we will calculate the values of \( y \) for each given \( x \):
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For \( x = -2 \): \[ y = 0.2^{-2} = \frac{1}{0.2^2} = \frac{1}{0.04} = 25 \]
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For \( x = -1 \): \[ y = 0.2^{-1} = \frac{1}{0.2} = 5 \]
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For \( x = 0 \): \[ y = 0.2^{0} = 1 \]
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For \( x = 1 \): \[ y = 0.2^{1} = 0.2 \]
Now we can fill in the table:
| x | y | |----|-----| | -2 | 25 | | -1 | 5 | | 0 | 1 | | 1 | 0.2 |
Plotting Points
To graph the function using two points, we can select:
- \( (-1, 5) \)
- \( (0, 1) \)
Graphing
Here's how you can visualize it:
- Plot the point (-1, 5) on the graph.
- Plot the point (0, 1) on the graph.
Given that \( 0.2^x \) is an exponential decay function, it will decrease as \( x \) increases. The curve will approach 0 as \( x \) becomes larger.
Feel free to use graph paper or graphing software to represent these points accurately!