What is the nth term rule of the liner sequence -4,-1,3,5,8?

3n-7 The sequence goes up in 3s. This is where you get the 3n from. However, the difference between this sequence and the 3 times tables is -7. For example, -4,-1,3,5,8 3,6,9,12,15 The difference is -7, which is where that number comes from.

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