{"id":"cb_practice_pdf:t7-math-m1-q20","source_id":"cb_practice_pdf","source_item_id":"t7-math-m1-q20","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":"spr","answer_source":"rationale","layout_warning":null,"form_id":"cb_practice_pdf:test-7","module_number":1,"position":20,"stem":"During a study, the temperature, in degrees (°C) Celsius, of the air in a chamber was recorded to the nearest integer at certain times. The scatterplot °C shows the recorded temperature y, in, of the air in the chamber x minutes after the start of the study. y 3 2^0 8 2 6 2 4 2 2 2 0 1 Temperature 1^8 6 l 4 coc) 2 1 0 8 6 4 2 X 0 1 2 3 4 5 6 7 8 Time (minutes) What was the average rate of change, in °C per minute, of the recorded temperature of the air in the chamber from x = 5 to x = 7?","stimulus":"","stimulus_html":null,"stem_html":"<p>During a study, the temperature, in degrees (°C) Celsius, of the air in a chamber was recorded to the nearest integer at certain times. The scatterplot °C shows the recorded temperature y, in, of the air in the chamber x minutes after the start of the study. y 3 2^0 8 2 6 2 4 2 2 2 0 1 Temperature 1^8 6 l 4 coc) 2 1 0 8 6 4 2 X 0 1 2 3 4 5 6 7 8 Time (minutes) What was the average rate of change, in °C per minute, of the recorded temperature of the air in the chamber from x = 5 to x = 7?</p>","rationale_html":"<p>The correct answer is 5. For the graph shown, x represents time, in minutes, and °C y represents temperature, in degrees Celsius ^ h. Therefore, the average rate of °C change, in per minute, of the recorded temperature of the air in the chamber between two x-values is the difference in the corresponding y-values divided by = the difference in the x-values. The graph shows that at x 5, the corresponding 14 = 24 y-value is . The graph also shows that at x 7, the corresponding y-value is . °C = = It follows that the average rate of change, in per minute, from x 5 to x 7 is 24-14 10 7-5 , which is equivalent to 2, or 5.</p>","correct_answer":["5"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[],"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}}