The Strain (Percent of Compression) on the Lumbar Vertebral Disks

Essay

The strain (percent of compression) on the lumbar vertebral disks in an adult human as a function of the load x (in kilograms) is given by .
Give the answer to four decimal places.
What is the rate of change of the strain with respect to the load when the load is 200 kg?
__________ What is the rate of change of the strain with respect to the load when the load is 400 kg?
__________