How to determine the rule of a arithmetic sequence given a1 and d

The video tutorial explains how to find the rule for a sequence by plugging in values and applying the distributive property. It starts with an introduction to the sequence rule, followed by a step-by-step process of substituting values to find a sub N. The tutorial then demonstrates the use of the distributive property to simplify the expression, leading to the final expression for a sub N.

What values are plugged in to find the value of a sub N?

What is the value of a sub N when N is equal to 1?

What does the expression 'n - 1 times - 2' represent in the context?

Explain how to apply the distributive property in the given context.

Describe the equation formed after applying the distributive property.