Which of the following parametric equations are equivalent to the polar equation r = 3 cos θ?

Question

(1 point)
Responses

x = 3 cos θ
y = 3 sin θ
x = 3 cos θ y = 3 sin θ

1st row x equals 3 cosine squared theta 2nd row y equals 3 cosine theta sine theta
Image with alt text: 1st row x equals 3 cosine squared theta 2nd row y equals 3 cosine theta sine theta

1st row x equals 3 cosine squared theta 2nd row y equals 3 sine squared theta
Image with alt text: 1st row x equals 3 cosine squared theta 2nd row y equals 3 sine squared theta

1st row x equals 3 cosine theta sine theta 2nd row y equals 3 cosine squared theta

Answer 1

x = 3 cos θ
y = 3 sin θ