SOLUTION: Margarita is hired by an accounting firm at a salary of $60,000 per year. Three years later her annual salary has increased to $70,500. Assume that her salary increases linearly.

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Question 1131907: Margarita is hired by an accounting firm at a salary of $60,000 per year. Three years later her
annual salary has increased to $70,500. Assume that her salary increases linearly.
a. Find an equation that relates her annual salary S and the number of years t that she has
worked for the firm.
b. What do the slope and S-intercept of her salary equation represent?
c. What will her salary be after 12 years with the firm?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+S+=+%28%28+70500+-+60000+%29%2F3+%29%2At+%2B+60000+
(a)
+S+=+3500t+%2B+60000+
+t+=+0+ is the hire date
(b)
The slope is the yearly increase in Salary
The S-intercept ( t = 0 ) is the salary at her hire date
(c)
+S+=+3500%2A12+%2B+60000+
+S+=+42000+%2B+60000+
+S+=+102000+
$102,000/yr salary after 12 yrs