Approximate the value of the integral defined by the given set of points.
∫₃¹⁵ y dx, where the table is:
| x | 3 | 5 | 7 | 9 | 11 | 13 | 15 |
| y | 0.53 | 1.72 | 3.21 | 1.78 | 1.34 | 6.95 | 7.37 |
∫₃¹⁵ y dx (Round to two decim