Check It Out! Example 2a Identify the conic section that the equation represents. 9x2 + 9y2 – 18x – 12y – 50 = 0.
{"Image DocumentName": "Check It Out! Example 2aIdentify the conic section that the equation represents. 9x2 + 9y2 \u2013 18x \u2013 12y \u2013 50 = 0.", "Image ImageDescription": "A = 9, B = 0, C = 9. Identify the values for A, B, and C. Substitute into B2 \u2013 4AC. B2 \u2013 4AC. (0)2 \u2013 4(9)(9) Simplify. The conic is either a circle or an ellipse. \u2013324. A = C. Because B2 \u2013 4AC < 0 and A = C, the equation represents a circle.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}