PRACTICE EXERCISES 3.1 I. Write the equation of each of the following circles in center-radius form. 1. With center at (- 4, 2) and radius 3. 2. With center at (3, -1) and radius 7. 3. Having as diameter the line segment from (- 1, 2) to (4, 6). 4. Having as diameter the line segment from (- 5, - 4) to ( 2, 3). 5. With radius 3 and touching both axes. 6. With center at (5, -4) and tangent to the y-axis. 7. With center at (-1, - 3) and passing through (2, 5). 8. With center at the origin and passing through (- 3/2, -4). 9. With center at the origin and touching the line 5x - 12y = 52. 10. With center at (-1, -2) and tangent to the line x - 2y = -7.PRACTICE EXERCISES: Find the distance between the given line and point 1. 3x + 4y - 10 =0 (-2, -1/2) 2. 3x - y = 0 (2, -4) 3. x+y- 2 = 0 (1/2, 1/3) 4. 5x - 12y - 1 = 0 (4, 1) 5. 8x - 6y = 5 (-1, 2)