I don't understand how to solve these practice questions. Can I have some help?

General Form for all Conics: Aaz2 +03;2 +Daz+Ey+F=0 Write the Conic in General Form by using Matrices. Find the equation for a circle containing (-1.1), (2,3), and (4,2). Fill in the values below. Make sure to put a O or a 1 if necessary. A: General Form for all Conics: sz +Cy2 +Dm+Ey+F=0 Write the Conic in General Form by using Matrices. Find the equation for a parabola containing (1.3), (5,1), and (8,4). This is a vertical parabola so the C value is 0, set the A value equal to 1 to solve. Make sure to put a 0 or a 1 if necessary. A: General Form for all Conics: Aa:2 +03;2 +D33+Ey+F=0 Write the Conic in General Form by using Matrices. Find the equation for an ellipse containing (2,4), (6,2), (3,3), and (4,8). Set the A value equal to 1 and solve for C, D, E, and F. Make sure to put a 0 or a1 if necessary. A