Dengan pusat O (0,0), titik K (5, p) dirotasikan sejauh 90° bayangannya adalah K' (2, q). Nilai p dan q berturut-turut yang mungkin adalah ... A. -2 dan -5 B. 2 dan 5 C. 2 dan -5 D. -2 dan 5

<ul><li>Titik Pusat O(0,0)</li><li>Rumus rotasi 90°</li></ul><p>&nbsp; &nbsp; &nbsp; &nbsp;<i><strong>A(x,y) &nbsp;---&gt; &nbsp; A' ( -y , x)</strong></i></p><ul><li>Titik K (5, p)</li><li>Bayangannya adalah K' (2, q)</li></ul><p>&nbsp; &nbsp; &nbsp; Penyelesaian</p><p>&nbsp; &nbsp; &nbsp; &nbsp;<i><strong>A(x,y) &nbsp;---&gt; &nbsp; A' ( -y , x)</strong></i></p><p><i>&nbsp; &nbsp; &nbsp;&nbsp;</i> K(5,p) ---&gt; &nbsp;K' (2, q)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;K (5, -p) ---&gt; K' (2,q)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;K (5, <strong>-2</strong>) ---&gt; K' (-[-2], <strong>5</strong>)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;K (5, <strong>-2</strong>) ---&gt; K' ( 2, <strong>5</strong>)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;Maka nilai <strong>p = -2</strong></p><p><strong>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; q = 5&nbsp;</strong></p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;(d). -2 dan 5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</p>