PLEASE write 2x+y=5 in polar form.

Question

a. -sqrt5 = r cos (theta -27degrees)
b. sqrt5 = r cos (theta -27degrees)
c. -sqrt5 = r cos (theta +27degrees)
d. sqrt5 = r cos (theta +27degrees)

is the answer c.

Answer 1

my polar equation would be

2rcosØ + rsinØ = 5
r(2cosØ + sinØ) = 5
r = 5/(2cosØ + sinØ)