{"status": "success", "data": {"description_md": "Let $\\ell_A$ and $\\ell_B$ be two distinct parallel lines. For positive integers $m$ and $n$, distinct points $A_1, A_2, A_3, \\ldots,  A_m$ lie on $\\ell_A$, and distinct points $B_1, B_2, B_3, \\ldots, B_n$ lie on $\\ell_B$. Additionally, when segments $\\overline{A_iB_j}$ are drawn for all $i=1,2,3,\\ldots, m$ and $j=1, 2, 3, \\ldots,  n$, no point strictly between $\\ell_A$ and $\\ell_B$ lies on more than two of the segments. Find the number of bounded regions into which this figure divides the plane when $m=7$ and $n=5$. The figure shows that there are 8 regions when $m=3$ and $n=2$.\n<a href=\"https://ibb.co/ByVdFzr\"><img src=\"https://i.ibb.co/pfvG50R/image-2024-09-08-231147915.png\" alt=\"image-2024-09-08-231147915\" border=\"0\"></a>\n___\nLeading zeroes must be inputted, so if your answer is `34`, then input `034`. Full credit goes to [MAA](https://maa.org/) for authoring these problems. These problems were taken on the [AOPS](https://artofproblemsolving.com/) website.", "description_html": "<p>Let <span class=\"katex--inline\">\\ell_A</span> and <span class=\"katex--inline\">\\ell_B</span> be two distinct parallel lines. For positive integers <span class=\"katex--inline\">m</span> and <span class=\"katex--inline\">n</span>, distinct points <span class=\"katex--inline\">A_1, A_2, A_3, \\ldots,  A_m</span> lie on <span class=\"katex--inline\">\\ell_A</span>, and distinct points <span class=\"katex--inline\">B_1, B_2, B_3, \\ldots, B_n</span> lie on <span class=\"katex--inline\">\\ell_B</span>. Additionally, when segments <span class=\"katex--inline\">\\overline{A_iB_j}</span> are drawn for all <span class=\"katex--inline\">i=1,2,3,\\ldots, m</span> and <span class=\"katex--inline\">j=1, 2, 3, \\ldots,  n</span>, no point strictly between <span class=\"katex--inline\">\\ell_A</span> and <span class=\"katex--inline\">\\ell_B</span> lies on more than two of the segments. Find the number of bounded regions into which this figure divides the plane when <span class=\"katex--inline\">m=7</span> and <span class=\"katex--inline\">n=5</span>. The figure shows that there are 8 regions when <span class=\"katex--inline\">m=3</span> and <span class=\"katex--inline\">n=2</span>.<br/>&#10;<a href=\"https://ibb.co/ByVdFzr\"><img src=\"https://i.ibb.co/pfvG50R/image-2024-09-08-231147915.png\" alt=\"image-2024-09-08-231147915\" border=\"0\"/></a></p>&#10;<hr/>&#10;<p>Leading zeroes must be inputted, so if your answer is <code>34</code>, then input <code>034</code>. Full credit goes to <a href=\"https://maa.org/\">MAA</a> for authoring these problems. These problems were taken on the <a href=\"https://artofproblemsolving.com/\">AOPS</a> website.</p>&#10;", "hints_md": "", "hints_html": "", "editorial_md": "", "editorial_html": "", "flag_hint": "", "point_value": 4, "problem_name": "2022 AIME II Problem 9", "can_next": true, "can_prev": true, "nxt": "/problem/22_aime_II_p10", "prev": "/problem/22_aime_II_p08"}}