Here you have black dots at x = {0, 1, 2, 4, 4.5, 5}.
For each of these x-values, there is one and only one associated y-value. This fact tells us that the graph does represent a function.
Use this "1 mg = (1/1000000) kg = 10-6<span> kg = 0.000001 kg"</span>
The answer to the question
1) This sequence of numbers is arithmetic, because each number is the previous one divided by two.
2) the next number in the sequence is 125/2, which is 62.5
The first one, the fourth one, and the middle one
