y=(1/4)^x,где а=1/4
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| x | -5 | -3 | -1 | 0 | 1 | 2 | 3 | 4 |
| y | 1024 | 64 | 4 | 1 | 1/4 | 1/16 | 1/64 | 1/256 |
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y=(2/3)^x,где а=2/3
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| x | -5 | -3 | -1 | 0 | 1 | 2 | 3 | 4 |
| y | 7,59375 | 3,375 | 1,5 | 1 | 2/3 | 4/9 | 8/27 | 16/81 |
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