Complete the table for the function y= 0.2^x.

x y
-2 __
-1 __
0 __
1 __
Now, graph the function.
Plot two points to graph the function

1 answer

To complete the table for the function \( y = 0.2^x \), we will calculate the values of \( y \) for each given \( x \):

  1. For \( x = -2 \): \[ y = 0.2^{-2} = \frac{1}{0.2^2} = \frac{1}{0.04} = 25 \]

  2. For \( x = -1 \): \[ y = 0.2^{-1} = \frac{1}{0.2} = 5 \]

  3. For \( x = 0 \): \[ y = 0.2^{0} = 1 \]

  4. 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. \( (-1, 5) \)
  2. \( (0, 1) \)

Graphing

Here's how you can visualize it:

  1. Plot the point (-1, 5) on the graph.
  2. 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!