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Which of the following describes the graph of the polar equation rcosθ = 4? horizontal line through -4 vertical line through -4 horizontal line through 4 vertical line through 4
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Which of the following describes the graph of the polar equation rcosθ = 4?

horizontal line through -4
vertical line through -4
horizontal line through 4
vertical line through 4

User Vijay Athithya
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1 Answer

3 votes
keeping in mind that

y = rsin(θ)
x = rcos(θ)

then rcos(θ) = 4, is really in rectangular the same as x = 4. Check the picture below.
Which of the following describes the graph of the polar equation rcosθ = 4? horizontal-example-1
User Hila DG
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7.1k points
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