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leetcode/problem/check-if-it-is-a-straight-line.html

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+<p>You are given an array&nbsp;<code>coordinates</code>, <code>coordinates[i] = [x, y]</code>, where <code>[x, y]</code> represents the coordinate of a point. Check if these points&nbsp;make a straight line in the XY plane.</p>
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+<p>&nbsp;</p>
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+
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+<p>&nbsp;</p>
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+<p><strong>Example 1:</strong></p>
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+
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+<p><img alt="" src="https://assets.leetcode.com/uploads/2019/10/15/untitled-diagram-2.jpg" style="width: 336px; height: 336px;" /></p>
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+
+
+<pre>
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+<strong>Input:</strong> coordinates = [[1,2],[2,3],[3,4],[4,5],[5,6],[6,7]]
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+<strong>Output:</strong> true
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+</pre>
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+
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+<p><strong>Example 2:</strong></p>
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+