Question Detail
Question
Given the parametric equations x - 9 = 3 cos θ and y + 14 = 3 sin θ, what is the radius of the circle?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Rewriting the equations as x = 9 + 3 cos θ and y = -14 + 3 sin θ, the coefficient of cos θ and sin θ, which is 3, represents the radius r.
Hint
The radius is the constant multiplying the trigonometric functions.