2025, Question 2 · Modeling a Non-Periodic Context · 6 points
Quadratic model for total plays of a song
Set up and solve a system for a quadratic model through three data points, use an average rate of change to estimate a value and explain why it underestimates the model, then use the vertex and the context to bound the model's domain.
1 Read the question
The question is College Board's, from the 2025 exam. It starts on page 4 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 5) What the exam readers saw (Chief Reader report)
Question, scoring guidelines and Chief Reader report: College Board. The title and summary are ours.