Question

1) The center of a circle is at (-10,6) and it has a radius of 4. What is the equation of the circle?

Answer 1

1.   (x - h)² + (y - k)² = r²
 (x - (-10)) + (y - 6)² = 4²
  (x + 10)² + (y - 6)² = 16
The equation of the circle is (x + 10)² + (y - 6)² = 16.

2. The answer is A.

3. The equation of the parabola is y = ⁻⁵/₃₆x² - 1²/₃x - 2.

4. I don't know the answer to the problem.