SOLUTION: An editor gets a $ 2,220 raise each year. After working five years, she is making $ 56,000 per year. write an equation in point-slope from which models her income in terms of how m

Algebra ->  Equations -> SOLUTION: An editor gets a $ 2,220 raise each year. After working five years, she is making $ 56,000 per year. write an equation in point-slope from which models her income in terms of how m      Log On


   



Question 1064924: An editor gets a $ 2,220 raise each year. After working five years, she is making $ 56,000 per year. write an equation in point-slope from which models her income in terms of how many years she has worked at the company.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Plot years, t, on the horizontal axis, and
Income, I, on the vertical axis
You are given the slope, +2220+ and the
point ( 5, 56000 )
------------------------
Use the point-slope formula
+%28+I+-+56000+%29+%2F+%28+t+-+5+%29+=+2220+
+I+-+56000+=+2220%2A%28+t+-+5+%29+
+I+-+56000+=+2220t+-+11100+
+I+=+2220t+%2B+44900+
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check:
Does the line pass through ( 5, 56000 ) ?
+I+=+2220t+%2B+44900+
+56000+=+2220%2A5+%2B+44900+
+56000+=+11100+%2B+44900+
+56000+=+56000+
OK