{"common":{"save":0,"post_id":"6654","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6712","post_id":"6654","mon_id":"1158921","chapter_id":"1158933","question":"<p>\u0110\u01b0\u1eddng th\u1eb3ng y = 2x + 1 song song v\u1edbi \u0111\u01b0\u1eddng th\u1eb3ng nào?<\/p>","options":["<strong>A.<\/strong> y = –2x − 1","<strong>B.<\/strong> y = –1 + 2x","<strong>C.<\/strong> y= x + 2","<strong>D.<\/strong> y = –x + 2"],"correct":"2","level":"2","hint":"<p>Hai \u0111\u01b0\u1eddng th\u1eb3ng y = ax + b (a ≠ 0) và \u0111\u01b0\u1eddng th\u1eb3ng y = a'x + b' (a' ≠ 0) song song v\u1edbi nhau khi <strong>a = a'<\/strong> và <strong>b ≠ b'<\/strong> và ng\u01b0\u1ee3c l\u1ea1i.<\/p>","answer":"<p>\u0110\u01b0\u1eddng th\u1eb3ng y = 2x + 1 song song v\u1edbi \u0111\u01b0\u1eddng th\u1eb3ng <strong>B.<\/strong> y = –1 + 2x vì h\u1ec7 s\u1ed1 góc \u0111\u1ec1u b\u1eb1ng 2 và 1 ≠ –1.<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> y = –1 + 2x<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-02 02:22:04","option_type":"txt","len":2},{"id":"6713","post_id":"6654","mon_id":"1158921","chapter_id":"1158933","question":"<p>\u0110\u01b0\u1eddng th\u1eb3ng <span class=\"math-tex\">$y=\\dfrac{1}{2}x+3$<\/span> c\u1eaft \u0111\u01b0\u1eddng th\u1eb3ng nào?<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$y=\\dfrac{1}{2}x-3$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$y=1+\\dfrac{1}{2}x$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$y=-\\dfrac{1}{2}x+3$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$y=\\dfrac{x-5}{2}$<\/span>"],"correct":"3","level":"2","hint":"<p>Hai \u0111\u01b0\u1eddng th\u1eb3ng y = ax + b (a ≠ 0) và \u0111\u01b0\u1eddng th\u1eb3ng y = a'x + b' (a' ≠ 0) c\u1eaft nhau khi <strong>a ≠ a'<\/strong> và ng\u01b0\u1ee3c l\u1ea1i.<\/p>","answer":"<p>\u0110\u01b0\u1eddng th\u1eb3ng <span class=\"math-tex\">$y=\\dfrac{1}{2}x+3$<\/span> c\u1eaft \u0111\u01b0\u1eddng th\u1eb3ng <span class=\"math-tex\">$y=-\\dfrac{1}{2}x+3$<\/span> vì <span class=\"math-tex\">$\\dfrac{1}{2} \\ne -\\dfrac{1}{2}$<\/span><\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> <span class=\"math-tex\">$y=-\\dfrac{1}{2}x+3$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-02 02:22:52","option_type":"math","len":0},{"id":"6714","post_id":"6654","mon_id":"1158921","chapter_id":"1158933","question":"<p>\u0110\u01b0\u1eddng th\u1eb3ng y = 3 – 2x song song v\u1edbi \u0111\u01b0\u1eddng th\u1eb3ng nào?<\/p>","options":["<strong>A.<\/strong> y = 2x − 1","<strong>B.<\/strong> y = –3 + 2x","<strong>C.<\/strong> y= x – 2","<strong>D.<\/strong> y = –2x"],"correct":"4","level":"2","hint":"<p>Hai \u0111\u01b0\u1eddng th\u1eb3ng y = ax + b (a ≠ 0) và \u0111\u01b0\u1eddng th\u1eb3ng y = a'x + b' (a' ≠ 0) song song v\u1edbi nhau khi <strong>a = a'<\/strong> và <strong>b ≠ b'<\/strong> và ng\u01b0\u1ee3c l\u1ea1i.<\/p>","answer":"<p>\u0110\u01b0\u1eddng th\u1eb3ng y = 3 – 2x song song v\u1edbi \u0111\u01b0\u1eddng th\u1eb3ng <strong>D.<\/strong> y = –2x vì có cùng h\u1ec7 s\u1ed1 góc là –2 và 3 ≠ 0.<\/p><p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> y = –2x<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-02 02:31:08","option_type":"txt","len":2}]}
