IB skill practice

Approximate area using the trapezoidal rule

Use tabulated values and the trapezoidal rule to approximate accumulated change.

Paper 1, Paper 2 5 marks Difficulty 5

Approximate area using the trapezoidal rule - interpretation demand

A regional clinic records rates at times 0, 2, and 4 as 4, 8, and 4. Use the trapezoidal rule to approximate the accumulated amount from 0 to 4. This version asks for the same mathematical quantity after confirming the method from the context. Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.