Select the Graph of the Polar Equation Using Symmetry,zeros,maximum R-Values,and $$r = 5 \cos 2 \theta$$

question 21

Multiple Choice

Select the graph of the polar equation using symmetry,zeros,maximum r-values,and any other additional points.​ $$r = 5 \cos 2 \theta$$ ​

• A)Symmetric with respect to the polar axis \[\begin{array} { c } | r | = 5 \text { when } \theta = 0 , \frac { \pi } { 2 } , \pi , \frac { 3 \pi } { 2 } \\ r = 0 \text { when } \theta = \frac { \pi } { 4 } , \frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 } , \frac { 7 \pi } { 4 } \end{array}\] ​
• B)Symmetric with respect to the polar axis \[\begin{array} { c } | r | = 5 \text { when } \theta = 0 , \frac { \pi } { 2 } , \pi , \frac { 3 \pi } { 2 } \\ r = 0 \text { when } \theta = \frac { \pi } { 4 } , \frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 } , \frac { 7 \pi } { 4 } \end{array}\] ​
• C)Symmetric with respect to the polar axis \[\begin{array} { c } | r | = 5 \text { when } \theta = 0 , \frac { \pi } { 2 } , \pi , \frac { 3 \pi } { 2 } \\ r = 0 \text { when } \theta = \frac { \pi } { 4 } , \frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 } , \frac { 7 \pi } { 4 } \end{array}\] ​
• D)Symmetric with respect to the polar axis \[\begin{array} { c } | r | = 5 \text { when } \theta = 0 , \frac { \pi } { 2 } , \pi , \frac { 3 \pi } { 2 } \\ r = 0 \text { when } \theta = \frac { \pi } { 4 } , \frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 } , \frac { 7 \pi } { 4 } \end{array}\] ​
• E)Symmetric with respect to the polar axis \[\begin{array} { c } | r | = 5 \text { when } \theta = 0 , \frac { \pi } { 2 } , \pi , \frac { 3 \pi } { 2 } \\ r = 0 \text { when } \theta = \frac { \pi } { 4 } , \frac { 3 \pi } { 4 } , \frac { 5 \pi } { 4 } , \frac { 7 \pi } { 4 } \end{array}\] ​

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