
To calculate: To match the polar coordinates with the point on the graph and then find the rectangular coordinates of the point

Answer to Problem 6E
The polar coordinates of point on the graph matches with point D and rectangular coordinate is (0,−2)
Explanation of Solution
Given information: Points is (2,3π2)
Polar coordinates of points
Formula Used:
Polar coordinate is given as (r,θ) , where r is radius of circle
Rectangular coordinate of the point in polar coordinate (r,θ) is given as
x=rcosθ
y=rsinθ
Calculation:
Point is given as
(2,3π2)
Plotting the polar coordinates on the graph
Thus, the point on graph is D
Rectangular coordinate of the point is calculated as follows:
x=rcosθ and
y=rsinθ
Calculating x coordinate,
x=2cos3π2x=2×0x=0
Now, calculating y coordinate
y=2sin3π2y=2×−1y=−2
Thus, rectangular coordinate is (0,−2)
Conclusion:
Hence, polar coordinates of point on the graph matches with point D and rectangular coordinate is (0,−2)
Chapter 9 Solutions
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