{"id":1728,"date":"2014-03-08t01:25:49","date_gmt":"2014-03-08t01:25:49","guid":{"rendered":"\/\/www.catharsisit.com\/sat\/?p=1728"},"modified":"2015-04-14t23:47:07","modified_gmt":"2015-04-14t23:47:07","slug":"sat-math-friday-coordinate-plane-challenge","status":"publish","type":"post","link":"\/\/www.catharsisit.com\/hs\/sat\/sat-math-friday-coordinate-plane-challenge\/","title":{"rendered":"[redirected] sat math friday – coordinate plane challenge"},"content":{"rendered":"

every now and then, the sat gets really diabolical and throws a coordinate geometry question without the coordinate plane. to make matters worse, the question is usually difficult to begin with\u2014even if you had the plane.<\/span><\/p>\n

the key is to translate the information by drawing out a mini-coordinate plane. remember, this is a timed test, so it doesn\u2019t have to be anything fancy (don\u2019t worry, the test isn\u2019t going to require you to carefully graph out parabolas\u2014the way your math teacher does).\u00a0 as long as your graph can help you better visualize the problem, you are half way to getting the problem right.<\/p>\n

of course, the other half is always a bit tricky. case in point\u2014this week\u2019s challenge question.<\/p>\n

see if you can crack it in less than two minutes! (for the answer and explanation, check out the video solution).<\/p>\n

 <\/p>\n

1.the center of circle q is the origin of a coordinate plane. if the point (-8, 15) is on the circle, what is the area of an isosceles right triangle with all three of its vertices on the circle?<\/strong><\/p>\n

(a)\u00a0 17<\/strong><\/p>\n

(b)\u00a0 289\u03c0<\/strong><\/p>\n

(c)\u00a0 144<\/strong><\/p>\n

(d) 289\/2<\/strong><\/p>\n

(e) 289<\/strong><\/p>\n

 <\/p>\n