Convert the rectangular equation to polar form. x/2 + y/2 = 4

Answer 1

Multiply both sides by 2 to get

x+ y = 8

Then substitute x = r cos θ and y = r sin Θ to get

r cos Θ + r sin Θ = 8

factor out r to get

r ( cos Θ + sin Θ ) = 8

which gives you

r = 8 / ( cos Θ + sin Θ )