Ml Aggarwal Solutions For Class 9 Chapter 9 Logarithms Get Free Pdf Graph (x4)^2 (y2)^2=25 (x − 4)2 (y − 2)2 = 25 ( x 4) 2 ( y 2) 2 = 25 This is the form of a circle Use this form to determine the center and radius of the circle (x−h)2 (y−k)2 = r2 ( x This is kind of tricky and involves some intuition First, notice that we have a lot of square terms, eg 25x4 = (5x2)2,16x2y2 = (4xy)2, and 4y4 = (2y2)2 A good trick for these is to 25 x 4 x 2 y 2 y 4