{"id":2454,"date":"2026-05-18T20:25:50","date_gmt":"2026-05-18T20:25:50","guid":{"rendered":"https:\/\/mcqacademy.com\/zh\/mcq\/function-composition-or-inverse-2\/"},"modified":"2026-05-18T20:25:50","modified_gmt":"2026-05-18T20:25:50","slug":"function-composition-or-inverse-2","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/zh\/mcq\/function-composition-or-inverse-2\/","title":{"rendered":"\u51fd\u6570\u590d\u5408\u6216\u53cd\u51fd\u6570 2"},"content":{"rendered":"<p>\u8bbe f(x)=3x+8\u3002\u4e0b\u5217\u54ea\u4e2a\u8868\u8fbe\u5f0f\u8868\u793a f^(-1)(x)\uff1f<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>(3x) &#8211; (8)<\/li>\n<li>(x &#8211; (8))\/3<\/li>\n<li>(x + (8))\/3<\/li>\n<li>3\/(x &#8211; (8))<\/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-2454","mcq","type-mcq","status-publish","hentry","topic-algebra","topic-functions","topic-inverse-functions","subject-algebra","education_level-hsc"],"mcq_note":"\u6c42\u53cd\u51fd\u6570\u65f6\uff0c\u5148\u628a\u51fd\u6570\u5199\u6210 y=f(x)\uff0c\u7136\u540e\u89e3\u51fa x\uff0c\u56e0\u4e3a\u53cd\u51fd\u6570\u4f1a\u628a\u539f\u51fd\u6570\u7684\u8f93\u5165\u548c\u8f93\u51fa\u5173\u7cfb\u53cd\u8fc7\u6765\u3002\u672c\u9898\u4e2d\uff0c\u4ee4 y=3x+8 and solve for x: x=(y-(8))\/3\u3002\u518d\u628a y \u6362\u6210 x\uff0c\u5f97\u5230 f^(-1)(x)=(x - (8))\/3\u3002\u6240\u4ee5\uff0c\u6b63\u786e\u7684\u53cd\u51fd\u6570\u8868\u8fbe\u5f0f\u5e94\u5f53\u80fd\u51c6\u786e\u53cd\u6620\u539f\u51fd\u6570\u7684\u53cd\u5411\u5bf9\u5e94\u5173\u7cfb\u3002","mcq_options":[{"right":"no","answer":"(3x) - (8)"},{"right":"yes","answer":"(x - (8))\/3"},{"right":"no","answer":"(x + (8))\/3"},{"right":"no","answer":"3\/(x - (8))"}],"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\/2454","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=2454"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/media?parent=2454"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/topic?post=2454"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/subject?post=2454"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/zh\/wp-json\/wp\/v2\/education_level?post=2454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}