Answer:
D.
Step-by-step explanation:
If we rotate the 3-D figure around y-axis, we'll obtain a cylinder with a radius of 1 unit.
I think this is
(1,6), (2,12), (3,18), (4,24)
The correct answer is <u><em>(2,−1)</em></u>
Mixed=whole+fraction
15/8=8/8+7/8=1+7/8=1 and 7/8