The center of the given circle is found by completing the square, which yields coordinates (3, 7/8). The slope of the line connecting this center to the point (3, 4) is evaluated as (4 - 7/8) divided by (3 - 3), which is undefined, indicating a vertical line. The length of the chord is calculated using the perpendicular distance from the center to the chord line formula, yielding the square root of 25, which equals 5 as required. Since the given slopes of 4/3 and -4/3 both produce this exact perpendicular distance and chord length of 5, the stated equations are true.