Help needed thank you!

Question

The estimated value of , using the trapezoidal rule with 4 trapezoids is

Options:

1)	3.25
2)	5.25
3)	4.00
4)	4.25

Answer 1

Area of the 1st trapezoid is 1/2(0+0.125)(0.5) = 0.03125

Area of the 2nd trapezoid is 1/2(0.125 + 1)(0.5) = 0.28125

Area of the 3rd trapezoid is 1/2(1 + 3.375)(0.5) = 1.09375

Area of the 4th trapezoid is 1/2(3.375 + 8)(0.5) = 2.84375

Total area = 0.03125 + 0.28125 + 1.09375 + 2.84375 = 4.25