Step 1 :Given the areas A, B, C, and D as 1.275, 2.497, 5.787, and 1.745 respectively.
Step 2 :The definite integral from b to 0 of the function f(x) is the sum of these areas.
Step 3 :Calculate the sum: \(1.275 + 2.497 + 5.787 + 1.745 = 11.304\)
Step 4 :Final Answer: The value of the definite integral from b to 0 of the function f(x) is \(\boxed{11.304}\)