SOLUTION: The sales of homes in a new development have been increasing. In January, 5 homes were sold, in February, 12 homes were sold. In March, 19 homes were sold. This pattern continued

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Question 1078435: The sales of homes in a new development have been increasing. In January, 5 homes were sold, in February,
12 homes were sold. In March, 19 homes were sold. This pattern continued for the remainder of the year.
What is the explicit rule that can be used to find the number of homes sold in the nth month of the year?

an=7n+2
an=7n−5
an=7n−2
an=7n+5
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
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The sales of homes in a new development have been increasing. In January, 5 homes were sold, in February,
12 homes were sold. In March, 19 homes were sold. This pattern continued for the remainder of the year.
What is the explicit rule that can be used to find the number of homes sold in the nth month of the year? 

an=7n+2

an=7n−5

an=7n−2   <<<---===   This formula works for all n = 1 (Jan), 2(Feb), 3 (Mar)

an=7n+5

Why do you ask, if you can easily check it on your own ??