Graph the polar equation.r = 
Identify the directrix and vertices. 
A. directrix: 9 unit(s) to the left of
the pole at x = -9
vertices: 
,
B. directrix: 9 unit(s) below
the pole at y = -9
vertices: 
, 
C. directrix: 9 unit(s) to the right of
the pole at x = 9
vertices: 
, 
D. directrix: 9 unit(s) above
the pole at y = 9
vertices: 
, 
Answer: A
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.
What will be an ideal response?
Simplify.
A. 
B. 
C. 
D. 
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What will be an ideal response?
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