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Writing and Using Explicit Rules for Arithmetic Sequences

Writing and Using Explicit Rules for Arithmetic Sequences 1.2 - Solution

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a

Let's make a table of the ordered pairs from the graph.

As we can see, the first term is and by calculating the difference between each pair of consecutive terms, we can tell that the common difference is Let's substitute these values in the function for an explicit rule of an arithmetic sequence.
The function represents the arithmetic sequence.
b
We will use the function from the previous part to find the value of when
Solve for
After hours the movie earns million.