{"common":{"save":0,"post_id":"6656","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6728","post_id":"6656","mon_id":"1158921","chapter_id":"1158933","question":"<p>T&igrave;m c&aacute;c gi&aacute; tr\u1ecb c\u1ee7a m \u0111\u1ec3 \u0111\u01b0\u1eddng th\u1eb3ng&nbsp;<span class=\"math-tex\">$y=(m-1)x+3\\space\\space (m\\ne1)$<\/span>&nbsp;c\u1eaft \u0111\u01b0\u1eddng th\u1eb3ng&nbsp;<span class=\"math-tex\">$y=-3x+2$<\/span>.&nbsp;<\/p>","options":["<strong>A.<\/strong> m &ne; 1 v&agrave; m &ne; &ndash;3","<strong>B.<\/strong> m &ne; 1 v&agrave; m &ne; &ndash;2","<strong>C.<\/strong> m &ne; 1 v&agrave; m &ne; 2","<strong>D.<\/strong> m &ne; 1 v&agrave; m &ne; &ndash;1"],"correct":"2","level":"3","hint":"","answer":"<p>Hai \u0111\u01b0\u1eddng th\u1eb3ng \u0111&atilde; cho c\u1eaft nhau khi&nbsp;m&nbsp;&ndash; 1 &ne; &ndash;3, suy ra&nbsp;m&nbsp;&ne;&nbsp;&ndash;2.<\/p><p>K\u1ebft h\u1ee3p v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u0111&atilde; cho, ta \u0111\u01b0\u1ee3c c&aacute;c&nbsp;gi&aacute; tr\u1ecb c\u1ea7n t&igrave;m c\u1ee7a m l&agrave;&nbsp;m&nbsp;&ne; 1 v&agrave; m&nbsp;&ne;&nbsp;&ndash;2.<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> m&nbsp;&ne; 1 v&agrave; m&nbsp;&ne;&nbsp;&ndash;2<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-02 03:10:05","option_type":"txt","len":2},{"id":"6730","post_id":"6656","mon_id":"1158921","chapter_id":"1158933","question":"<p>Cho hai h&agrave;m s\u1ed1 b\u1eadc nh\u1ea5t y = 3mx + 2 (m &ne; 0) v&agrave; y = (m&nbsp;&ndash; 2)x + 5 (m &ne; 2). V\u1edbi gi&aacute; tr\u1ecb n&agrave;o c\u1ee7a m th&igrave; \u0111\u1ed3 th\u1ecb c\u1ee7a hai h&agrave;m s\u1ed1 tr&ecirc;n l&agrave; hai \u0111\u01b0\u1eddng th\u1eb3ng song song?<\/p>","options":["<strong>A.<\/strong> m = &ndash;3","<strong>B.<\/strong> m = &ndash;2","<strong>C.<\/strong> m = 2","<strong>D.<\/strong> m = &ndash;1"],"correct":"4","level":"3","hint":"","answer":"<p>\u0110\u1ed3 th\u1ecb c\u1ee7a hai h&agrave;m s\u1ed1 tr&ecirc;n l&agrave; hai \u0111\u01b0\u1eddng th\u1eb3ng song song khi 3m = m&nbsp;&ndash; 2<\/p><p>suy ra m =&nbsp;&ndash;1 (th\u1ecfa m&atilde;n&nbsp;m &ne; 0 v&agrave;&nbsp;m &ne; 2)<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;m = &ndash;1<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-02 03:14:36","option_type":"txt","len":1},{"id":"6733","post_id":"6656","mon_id":"1158921","chapter_id":"1158933","question":"<p>T&igrave;m c&aacute;c gi&aacute; tr\u1ecb c\u1ee7a m \u0111\u1ec3 \u0111\u1ed3 th\u1ecb c\u1ee7a h&agrave;m s\u1ed1&nbsp;v&agrave; y = (m&nbsp;+ 3)x + 5 (m &ne; &ndash;3) song song v\u1edbi \u0111\u01b0\u1eddng th\u1eb3ng&nbsp;y = <span class=\"math-tex\">$\\dfrac{3}{2}$<\/span>x + 2?<\/p>","options":["<strong>A.<\/strong> m = <span class=\"math-tex\">$-\\dfrac{1}{2}$<\/span>","<strong>B.<\/strong> m = <span class=\"math-tex\">$\\dfrac{3}{2}$<\/span>","<strong>C.<\/strong> m = <span class=\"math-tex\">$-\\dfrac{3}{2}$<\/span>","<strong>D.<\/strong> m = <span class=\"math-tex\">$-\\dfrac{5}{2}$<\/span>"],"correct":"3","level":"3","hint":"","answer":"<p>Hai \u0111\u01b0\u1eddng th\u1eb3ng \u0111&atilde; cho song song v\u1edbi nhau khi m + 3 =&nbsp;<span class=\"math-tex\">$\\dfrac{3}{2}$<\/span>&nbsp;<\/p><p>suy ra m =&nbsp;<span class=\"math-tex\">$-\\dfrac{3}{2}$<\/span>&nbsp;(th\u1ecfa m&atilde;n&nbsp;m &ne; &ndash;3)<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#1abc9c;\"><\/span><span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;m =&nbsp;<span class=\"math-tex\">$-\\dfrac{3}{2}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2023-09-02 03:18:55","option_type":"math","len":0}]}