{"id":"cb_practice_pdf:t10-math-m2-q7","source_id":"cb_practice_pdf","source_item_id":"t10-math-m2-q7","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-10","module_number":2,"position":7,"stem":"f(x) = 4x The function f is defined by. For what value of x does f(x) = 8?","stimulus":"","stimulus_html":null,"stem_html":"<p>f(x) = 4x The function f is defined by. For what value of x does f(x) = 8?</p>","rationale_html":"<p>The correct answer is 2. Substituting 8 for f^xh in the given equation yields 8=4 = x. Dividing the left- and right-hand sides of this equation by 4 yields x 2. = Therefore, the value of x is 2 when f^xh 8.</p>","correct_answer":["2"],"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}}