What is the exponential model described by the following table? Use a graphing calculator with exponential regression to solve.

x |
1 |
2 |
3 |
4 |
5 |
6 |
7 |

y |
7 |
10 |
14 |
19 |
27 |
38 |
53 |

^{x}

^{x}

^{x}

^{x}