{"id":2469,"date":"2026-05-18T20:28:00","date_gmt":"2026-05-18T20:28:00","guid":{"rendered":"https:\/\/mcqacademy.com\/zh\/mcq\/function-composition-or-inverse-17\/"},"modified":"2026-05-18T20:28:00","modified_gmt":"2026-05-18T20:28:00","slug":"function-composition-or-inverse-17","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/zh\/mcq\/function-composition-or-inverse-17\/","title":{"rendered":"\u51fd\u6570\u590d\u5408\u6216\u53cd\u51fd\u6570 17"},"content":{"rendered":"<p>\u8bbe f(x)=-3x+8\uff0cg(x)=3x+0\u3002\u6c42 (f\u2218g)(6)\u3002<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>-43<\/li>\n<li>-30<\/li>\n<li>-46<\/li>\n<li>-38<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[1079,1116,1117],"subject":[1080],"education_level":[5],"class_list":["post-2469","mcq","type-mcq","status-publish","hentry","topic-algebra","topic-functions","topic-inverse-functions","subject-algebra","education_level-hsc"],"mcq_note":"\u5bf9\u4e8e\u590d\u5408\u51fd\u6570\uff0c\u8981\u6309\u7167\u201c\u7531\u5185\u5230\u5916\u201d\u7684\u987a\u5e8f\u8ba1\u7b97\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5148\u6c42 g(x)\uff0c\u518d\u628a\u8fd9\u4e2a\u7ed3\u679c\u4f5c\u4e3a f \u7684\u8f93\u5165\u3002\u672c\u9898\u4e2d\uff0c(f\u2218g)(x) \u8868\u793a f(g(x))\u3002\u5148\u8ba1\u7b97 g(6)=3(6)+0=18\uff1b\u7136\u540e\u8ba1\u7b97 f(g(6))=-3(18)+8=-46\u3002\u56e0\u6b64\uff0c(f\u2218g) \u7684\u6700\u7ec8\u503c\u5fc5\u987b\u7ecf\u8fc7\u7b2c\u4e8c\u6b21\u4ee3\u5165\u540e\u624d\u80fd\u5f97\u5230\uff0c\u800c\u4e0d\u662f\u53ea\u6c42\u51fa g \u7684\u503c\u5c31\u7ed3\u675f\u3002","mcq_options":[{"right":"no","answer":"-43"},{"right":"no","answer":"-30"},{"right":"yes","answer":"-46"},{"right":"no","answer":"-38"}],"multi_answers":"no","subject_terms":[{"id":1080,"title":"Algebra","slug":"algebra"}],"topic_terms":[{"id":1079,"title":"Algebra","slug":"algebra"},{"id":1116,"title":"Function Composition","slug":"functions"},{"id":1117,"title":"Inverse Functions","slug":"inverse-functions"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/mcq\/2469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/comments?post=2469"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/media?parent=2469"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/topic?post=2469"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/subject?post=2469"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/education_level?post=2469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}