112023/ assignment6_geometry_and_linear_algebra_review/1 Previous Problem Problem List Next Problem Assignment6 Geometry and linear algebra review: Problem 1 (1 point) Answer the following questions about the sphere whose equation is given by 1. Find the radius of the sphere. Radius: r = 5 x + y +22-8x+8y = -7. 2. Find the center of the sphere. Write the center as a point (a, b, c) where a, b, and care numbers. Center: (4,-4,0) Note: You can earn partial credit on this