{"id":"cb_practice_pdf:t6-math-m1-q8","source_id":"cb_practice_pdf","source_item_id":"t6-math-m1-q8","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":"Part of this question was typeset outside the text flow — a fraction, subscript or similar — and PDF extraction re-inserted it in the wrong place. The wording is reliable; the symbols may be out of order.","form_id":"cb_practice_pdf:test-6","module_number":1,"position":8,"stem":"f x = x+b For the linear function f, b is a constant. = 0 = 30 When x, f x. What is the value of b? −30","stimulus":"","stimulus_html":null,"stem_html":"<p>f x = x+b For the linear function f, b is a constant. = 0 = 30 When x, f x. What is the value of b? −30</p>","rationale_html":"<p>= =30 Choice D is correct. It’s given that when x 0, f^xh . Substituting 0 for x and 30 30=0+ 30= for f^xh in the given function yields b, or b. Therefore, the value 30 of b is . Choice A is incorrect and may result from conceptual or calculation errors. Choice B is incorrect and may result from conceptual or calculation errors. Choice C is incorrect and may result from conceptual or calculation errors. 35 SAT PRACTICE TEST #6 ANSWER EXPLANATIONS SAT ANSWER EXPLANATIONS n MATH: MODULE 1</p>","correct_answer":["D"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"<p>−</p>","ord":0},{"label":"B","content_html":"<p>1/30</p>","ord":1},{"label":"C","content_html":"<p>1/30</p>","ord":2},{"label":"D","content_html":"<p>30</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}}