The picture shown above is of two listening vessels at Houston's Discover Green. If you sit in one of the chairs, and talk at normal voice, you can hear what is being spoken by persons sitting in the other chair. This is because the chairs are located at the foci of an ellipse. For a simpler example, consider the following: The elliptical ceiling of a building is 29 ft long and h = 9 ft tall. You can set this up on a coordinate plane by letting the y-intercept equal the maximum room height, and by letting the x-intercepts represent the major vertices of the elliptical room. (Hint: Divide the length of the room by 2 to center the room on the coordinate plane.). Where would the chairs need to be set up in this listening room in order for someone to hear the conversation of a person sitting in the opposite chair? In other words, how many feet from the center of the ellipse should the chairs be located? Round the answer to the nearest foot. 3 4 Type your answer... Submit