{"id":"cb_practice_pdf:t5-math-m1-q5","source_id":"cb_practice_pdf","source_item_id":"t5-math-m1-q5","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-5","module_number":1,"position":5,"stem":"The table shows selected values from function f. x f(x) −1 16 0 17 1 18 2 19 Which of the following is the best description of function f?","stimulus":"","stimulus_html":null,"stem_html":"<p>The table shows selected values from function f. x f(x) −1 16 0 17 1 18 2 19 Which of the following is the best description of function f?</p>","rationale_html":"<p>Choice B is correct. The given values show that as x increases, f^xh also increases, which means that f is an increasing function. Furthermore, f^xh increases at a constant rate of 1 for each increase of x by 1. A function with a constant rate of change is linear. Thus, the function f can be described as an increasing linear function. Choice A is incorrect. For a decreasing linear function, as x increases, f^xh decreases rather than increases. Choice C is incorrect. For a decreasing exponential function, for each increase of x by 1, f^xh decreases by a fixed percentage rather than increases at a constant rate. Choice D is incorrect. For an increasing exponential function, for each increase of x by 1, f^xh increases by a fixed percentage rather than at a constant rate.</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 linear</p>","ord":0},{"label":"B","content_html":"<p>Increasing linear</p>","ord":1},{"label":"C","content_html":"<p>Decreasing exponential</p>","ord":2},{"label":"D","content_html":"<p>Increasing exponential</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}}