2025, Question 4 · Calculator not allowed · 9 points
An accumulation function from a graph
Use semicircular and linear pieces of a graph to analyze an integral function, its concavity and its absolute minimum.
1 Read the question
The question is College Board's, from the 2025 exam. It starts on page 7 of the PDF.
2 Write your answer
Answer each part the way you would on the exam, in full sentences, with your work shown. Your writing saves as you type.
3 Score it
Score your answer against College Board's scoring guidelines, one point at a time. Give yourself a point only when your answer says what the guideline asks for.
Scoring guidelines (PDF, page 15) What the exam readers saw (Chief Reader report)
Question, scoring guidelines and Chief Reader report: College Board. The title, summary are ours.