Chapter 18, Problem 14PEA

To determine

The slope of the subducting plate in $\text{m/km}$

where earthquake data from a subduction zone are displayed in the following table:

	Distance from trench ($\text{km}$)	Earthquake depth ( $\text{km}$)
1	$15.7$	$6.4$
2	$54.2$	$20.6$
3	$87.5$	$31.3$
4	$115.6$	$48.6$
5	$139.9$	$60.2$