6) Match each equation (I)-(IV) with its polar graph from choices A-D (1) r=-3cose Answer: A (11) r=2+ 2sine Answer: B (III) r=5cos20 Answer: C (IV) r2=4sin20 Answer: D 4 年 0

For 10.3, we would like to understand some basic idea of polar coordinate and polar equations: 57 3) Plot the points with polar coordinates: (3, ), (– 4, –5), (– 2, 7), (5, –), (1, – 4). 4 rewrite each polar coordinate in another way, where r is the opposite of the original value and theta is between O and 2pi. For example: (3, ) = (- 3,0), 0<0 < 2m 6.

Which of the following polar points is equivalent to the rectangular point (-2/3, 2)? Select all that are equivalent. O (4, – T/3) o(-4, - п/3) O (4, 2T/3) O (4, – 1/6) O(-4, – T/6) O (4, 5 T/6) None of these points are equivalent