[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-464166-105":3,"detail-sidebar-cat-0-en-105":72,"doc-detail-464166-en":122},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":65,"head_meta":67,"extra_data":69,"updated_unix":71},105,"en","identify-functions-equations-answer-key","Identify Functions (Equations) - Answer Key","","Answer key for an instructional math worksheet titled Identify Functions (Equations). It tests whether each given equation represents a function, labeling each as yes or no. The worksheet uses x as the input and y as the output and includes 20 equations with various algebraic forms involving addition, subtraction, multiplication, and division. The key provides the corresponding classification for every item.",{"@graph":14,"@context":64},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/exam/","Exam",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/identify-functions-equations-answer-key/464166/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/identify-functions-equations-answer-key/464166.png","ImageObject",300,407,{"name":42,"@type":43},"Finn","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-02","2026-09-30",true,{"@type":52,"interactionType":53,"userInteractionCount":26},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58],{"name":59,"@type":60,"acceptedAnswer":61},"Where are the answers provided?","Question",{"text":62,"@type":63},"The document contains an “Answer Key” section that lists whether each equation (1 through 20) is a function (yes) or not (no).","Answer","https://schema.org",{"og:url":32,"og:type":66,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":68,"canonical":32},"index,follow",{"doc_id":70,"site_id":7},464166,1790767774,{"code":4,"msg":73,"data":74},"success",[75,79,83,86,91,96,101,106,111,114,118],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":76,"show_sort_weight":77,"slug":78},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":80,"show_sort_weight":81,"slug":82},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":84,"slug":85},70,"exam",{"id":87,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},5,"Comic",60,"comic",{"id":92,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},6,"Technology",50,"technology",{"id":97,"doc_module":4,"doc_module_name":25,"category_name":98,"show_sort_weight":99,"slug":100},7,"Healthcare",40,"healthcare",{"id":102,"doc_module":4,"doc_module_name":25,"category_name":103,"show_sort_weight":104,"slug":105},8,"Research & Report",30,"research-report",{"id":107,"doc_module":4,"doc_module_name":25,"category_name":108,"show_sort_weight":109,"slug":110},9,"Religion & Spirituality",20,"religion-spirituality",{"id":109,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":109,"slug":113},"World Cup","world-cup",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":115,"slug":117},10,"Lifestyle","lifestyle",{"id":119,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":87,"slug":121},19,"General","general",{"code":4,"msg":73,"data":123},{"doc_id":70,"user_id":124,"nickname":42,"user_avatar":125,"doc_module":4,"category_id":33,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":126,"file_id":127,"file_url":128,"file_type":129,"file_size":130,"view_count":26,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":30,"language":131,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":132,"faqs":133,"seo_title":134,"seo_description":12,"update_tm":71,"read_time":102},34359740700684,"https://ap-avatar.wpscdn.com/avatar/1f400023980c374ae676?_k=1777273430885731487","Identify Functions (Equations)  \nName:  \nDetermine if each equation describes a function (yes) or not (no). In the equation x represents the input and y represents the output.  \n1) y-7 = x 2) y8 = 2 × x  \n3) x + 8 = y2 4) y-8 = x-9  \n5) x ÷ 7 = y8 6) x-9 = y8  \n7) x = 8 + y 8) y = x7  \n9) x = 6 ÷ y 10) y9 = x4  \n11) y = x + 4 12) y = x-2  \n13) y-8 + 7 = x 14) y × 8 = x  \n15) y + 2 = x 16) y-8 = 8x  \n17) y = 9-x 18) y4 = 2-x  \n19) y2 + x = 6 20) x × 5 = y6  \nAnswers  \n1.  \n2.  \n3.  \n4.  \n5.  \n6.  \n7.  \n8.  \n9.  \n10.  \n11.  \n12.  \n13.  \n14.  \n15.  \n16.  \n17.  \n18.  \n19.  \n20.  \nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n1  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nIdentify Functions (Equations)  \nName: Answer Key  \n\n| Determine if each equation describes a function (yes) or not (no). In the equation x represents the input and y represents the output.\u003Cbr>1) y-7 = x 2) y8 = 2 × x\u003Cbr>3) x + 8 = y2 4) y-8 = x-9\u003Cbr>5) x ÷ 7 = y8 6) x-9 = y8\u003Cbr>7) x = 8 + y 8) y = x7\u003Cbr>9) x = 6 ÷ y 10) y9 = x4\u003Cbr>11) y = x + 4 12) y = x-2\u003Cbr>13) y-8 + 7 = x 14) y × 8 = x\u003Cbr>15) y + 2 = x 16) y-8 = 8x\u003Cbr>17) y = 9-x 18) y4 = 2-x\u003Cbr>19) y2 + x = 6 20) x × 5 = y6 | Answers\u003Cbr>1.  yes \u003Cbr>[2. ](2.  no)[ no](2.  no) \u003Cbr>[3. ](3.  no)[ no](3.  no) \u003Cbr>[4. ](4.  no)[ no](4.  no) \u003Cbr>[5. ](5.  no)[ no](5.  no) \u003Cbr>[6. ](6.  no)[ no](6.  no) \u003Cbr>[7](7).  yes \u003Cbr>8.  yes \u003Cbr>9.  yes \u003Cbr>10.  yes \u003Cbr>11.  yes \u003Cbr>12.  yes \u003Cbr>[13. ](13.  no)[ no](13.  no) \u003Cbr>[14](14).  yes \u003Cbr>15.  yes \u003Cbr>[16. ](16.  no)[ no](16.  no) \u003Cbr>[17](17).  yes \u003Cbr>[18. ](18.  no)[ no](18.  no) \u003Cbr>[19. ](19.  no)[ no](19.  no) \u003Cbr>[20.](20. no)[ no](20. no) |\n| --- | --- |\n\nMath  \n[www.CommonCoreSheets.com](www.CommonCoreSheets.com)  \n1  \n1-10 11-20  \n95  \n45  \n90  \n40  \n85  \n35  \n80  \n30  \n75  \n25  \n70  \n20  \n65  \n15  \n60  \n10  \n55  \n5  \n50  \n0  \nIdentify Functions (Equations)  \nName:  \n\n| Determine if each equation describes a function (yes) or not (no). In the equation x represents the input and y represents the output.\u003Cbr>1) y-7 = x 2) y8 = 2 × x\u003Cbr>3) x + 8 = y2 4) y-8 = x-9\u003Cbr>5) x ÷ 7 = y8 6) x-9 = y8\u003Cbr>7) x = 8 + y 8) y = x7\u003Cbr>9) x = 6 ÷ y 10) y9 = x4 |  |  |  |  |  |  |  | Answers\u003Cbr>1.  \u003Cbr>2.  \u003Cbr>3.  \u003Cbr>4.  \u003Cbr>5.  \u003Cbr>6.  \u003Cbr>7.  \u003Cbr>8.  \u003Cbr>9.  \u003Cbr>10.  \u003Cbr>11.  \u003Cbr>12.   |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n| 11) y = x + 4 | 12) y = x-2 |  |  |  |  |  |  |  |  |  |  |  |  |\n| \u003Cbr>Math | Modified\u003Cbr>[www.CommonCoreSheets.com](www.CommonCoreSheets.com) | 1 | 1-10\u003Cbr>11-12 | 92 | 83 | 75 | 67 | 58 | 50 | 42 | 33 | 25 | 17 |\n|  |  |  |  | 8 | 0 |  |  |  |  |  |  |  |  |","cbCaidBWQGVjkswH","https://ap.wps.com/l/cbCaidBWQGVjkswH","pdf",43332,"English","# Determine Function or Not\n## Rules for Input and Output (x and y)\n## Itemized Equations (1-20)","[{\"question\":\"Where are the answers provided?\",\"answer\":\"The document contains an “Answer Key” section that lists whether each equation (1 through 20) is a function (yes) or not (no).\"}]","Identify Functions (Equations) - Answer Key | PDF"]