SOLUTION: 1.) Sales last month were 4000.00, this month they were 5000.00. Write an equation that shows this using y for sales and x for the month. (this month x=0, last month x=-1, next mon

Question 53856: 1.) Sales last month were 4000.00, this month they were 5000.00. Write an equation that shows this using y for sales and x for the month. (this month x=0, last month x=-1, next month x=1 etc... 2.) What will the sales be 4 months from now?
Can someone show me how to work this? Thanks.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
1.) Sales last month were 4000.00, this month they were 5000.00. Write an equation that shows this using y for sales and x for the month. (this month x=0, last month x=-1, next month x=1 etc... 2.) What will the sales be 4 months from now?
---------------
You have two points: (-1,4000),(0,5000)
slope = [5000-4000]/[0-(-1)]
slope = 1000
The y-intercept is 5000 as you see in the point (0,5000)
EQUATION:
Sales=1000x+5000
---------
4 months from now means x=4
Sales = 1000(4)+4000
Sales = $8000
Cheers,
stan H.
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