SOLUTION: PLEASE HELP The rectangular form for the posar equation r = -2csc(0 with a line through it) is a. y = x-2 b. y = 2 c. y = 2x d. y = -2 thank you

Algebra ->  Vectors -> SOLUTION: PLEASE HELP The rectangular form for the posar equation r = -2csc(0 with a line through it) is a. y = x-2 b. y = 2 c. y = 2x d. y = -2 thank you       Log On


   

Question 143012: PLEASE HELP The rectangular form for the posar equation r = -2csc(0 with a line through it) is
a. y = x-2
b. y = 2
c. y = 2x
d. y = -2
thank you
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The rectangular form for the posar equation r = -2csc(0 with a line through it) is
a. y = x-2
b. y = 2
c. y = 2x
d. y = -2
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Conversion formulas:
r = sqrt(x^2+y^2)
theta = tan^-1(y/x)
------------------------------
Note: If tangent is y/x then csc is r/y
------------------------------
Substituting you get:
r =-2(r/y
Divide both sides by r to get:
1 = -2/y
y = -2
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Cheers,
Stan H.