Measurements of a lake’s width were taken at 15-foot intervals, as shown:
x= 0 15 30 45 60 75 90 105 120
f(x)= 0 15 18 20 19 23 24 22 12
Estimate integral (0,120) f(x) dx with n = 4, using the left-hand approximation, the right hand approximation, and the trapezoidal approximation.
I figured out the midpoint approximation but I need some guidance with these other approximations.
1 answer
If you can do the midpoint you can do the rest. Draw pictures.