{"id":"cb_practice_pdf:t10-math-m1-q12","source_id":"cb_practice_pdf","source_item_id":"t10-math-m1-q12","external_id":null,"ibn":null,"question_id":null,"program":"SAT","module":"math","domain_code":null,"domain":null,"skill_code":null,"skill":null,"difficulty":null,"score_band":null,"answer_type":"mcq","answer_source":"rationale","layout_warning":null,"form_id":"cb_practice_pdf:test-10","module_number":1,"position":12,"stem":"An airplane descends from an altitude of 9,500 feet to 5,000 feet at a constant rate of 400 feet per minute. What type of function best models the relationship between the descending airplane’s altitude and time?","stimulus":"","stimulus_html":null,"stem_html":"<p>An airplane descends from an altitude of 9,500 feet to 5,000 feet at a constant rate of 400 feet per minute. What type of function best models the relationship between the descending airplane’s altitude and time?</p>","rationale_html":"<p>Choice B is correct. It′s given that the airplane descends at a constant rate of 400feetperminute . Since the altitude decreases by a constant amount during each fixed time period, the relationship between the airplane′s altitude and time is 9,500feet 5,000feet linear. Since the airplane descends from an altitude of to , the airplane′s altitude is decreasing with time. Thus, the relationship is best modeled by a decreasing linear function. Choice A is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. Choice D is incorrect and may result from conceptual or calculation errors.</p>","correct_answer":["B"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>Decreasing exponential</p>","ord":0},{"label":"B","content_html":"<p>Decreasing linear</p>","ord":1},{"label":"C","content_html":"<p>Increasing exponential</p>","ord":2},{"label":"D","content_html":"<p>Increasing linear</p>","ord":3}],"attribution":{"source_id":"cb_practice_pdf","source_name":"College Board full-length SAT practice tests (PDF)","rights_holder":"College Board","canonical_url":"https://satsuite.collegeboard.org/practice/practice-tests/paper","retrieved_from":"https://satsuite.collegeboard.org/practice/practice-tests/paper","attribution":"Full-length SAT practice tests 4–11 © College Board, published free at satsuite.collegeboard.org.","disclaimer":"Extracted from PDF layout: equations, figures and tables do not survive intact. Use the original PDFs for anything the text renders poorly. SAT® is a trademark registered by the College Board, which is not affiliated with and does not endorse this project.","license":"College Board copyright. Free to download; not licensed for redistribution.","redistributable":false,"item_count":905}}