Start at (0, 135) and work your way down 15 and over one each time. Your next point would be (1, 120)
the distance between cd rounded to the nearest tenth is ≈ 7
Answer: <em>(1,5,7,10,11,15)</em>
To get the union of two sets of numbers, all you do is combine the numbers from least to greatest. If a number repeats in the 2 sets, you only put it once.