1. the table shows the soil density of several soil samples at different depths.
depth (m)
1
5
6
8
10
12
14
21
23
24
28
soil density ()
1052
1073
1112
1149
1171
1252
1219
1244
1267
1251
1264

(a) write the equation of the regression line that models the data. let x = depth below the surface and let y = soil density. (use the highlighted points to calculate your equation)
(b) use the equation to estimate the soil density of a sample at a depth of 20 m. show your work.