{"id":21305,"date":"2026-05-25T22:28:08","date_gmt":"2026-05-25T16:28:08","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/evaluate-a-linear-function-13\/"},"modified":"2026-05-25T22:28:08","modified_gmt":"2026-05-25T16:28:08","slug":"evaluate-a-linear-function-13","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/evaluate-a-linear-function-13\/","title":{"rendered":"Evaluate a linear function"},"content":{"rendered":"<p>If f(x) = -2x &#8211; 7, find f(-5).<\/p>\n<ul class=\"quiz-options\">\n<li>24<\/li>\n<li>-12<\/li>\n<li>3<\/li>\n<li>33<\/li>\n<li>17<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2897,2717],"subject":[2750],"education_level":[1894],"class_list":["post-21305","mcq","type-mcq","status-publish","hentry","topic-algebraic-substitution","topic-functions","subject-advanced-mathematics","education_level-grade-8"],"mcq_note":"Substitute x = -5 into the function: f(-5) = -2 \u00d7 -5 - 7 = 3. A function gives an output for each input. To evaluate f(x), replace every x in the rule with the given number before simplifying. Be especially careful with negative inputs, because multiplying two negative signs can make a positive result. The correct answer is 3, which matches the calculation or reasoning shown.","mcq_options":[{"right":"no","answer":"24"},{"right":"no","answer":"-12"},{"right":"yes","answer":"3"},{"right":"no","answer":"33"},{"right":"no","answer":"17"}],"multi_answers":"no","subject_terms":[{"id":2750,"title":"Advanced Mathematics","slug":"advanced-mathematics"}],"topic_terms":[{"id":2897,"title":"Algebraic Substitution","slug":"algebraic-substitution"},{"id":2717,"title":"Functions","slug":"functions"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/21305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/comments?post=21305"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=21305"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=21305"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=21305"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=21305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}