(Score for Question 2: of 10 points) 2. The general form of a circle is given as x + * + 4x -12y +4=0 (a) What are the coordinates of the center of the circle? (b) What is the length of the radius of the circle? Answer(Score for Question 1: _ of 10 points) 1. Write a two-column proof for the following conjecture. Given: Parallelogram ABCD D A C B Prove: ZA and 28 are supplementary, and _B and _C are supplementary Answer:(Score for Question 3: _ of 10 points) 3. Consider the equation, * + 3 _ x - 4 x - 2 X + 5 (a) Solve the equation for x. Show and explain each step used when solving the equation (b) Show and explain how the solution can be verified