Use MATLAB to solve

Somewhere in the middle of a lake. 4. The following data describes the depth (in feet) measured in a lake that was divided into a grid for an ecological study. |x-25 |x-30 249 265 301 x=10 x=15 |-20 10 63 105 150 198 |161 231 |128 |191 |237 270 v=15 20 165 208 (a) Based on the data collected, at which locations can we determine the overall rate of change of the depth using a 2-point central differencing method? (b) At [x.y] [15,15], use central differencing to determine if the magnitude of the slope is. greater in the x or y direction