SOLUTION: You are the new sales manager at Ford. In March you sell 50 new fords. In May you sell 60 new Fords. If the current trend continues, how many might you sell in October? Use formul

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Question 137378: You are the new sales manager at Ford. In March you sell 50 new fords. In May you sell 60 new Fords. If the current trend continues, how many might you sell in October? Use formulas for slope and slope-intercept to arrive at your answer.
Answer by checkley77(12569) About Me  (Show Source):
You can put this solution on YOUR website!
MONTH 1=50 (1,50)
MONTH 3=60 (3,60)
SLOPE=(60-50)/(3-1)=10/2=5
50=5*1+b
b=50-4
b=45
THUS THE EQUATION IS:
Y=5X+45
Y=5*7+45
Y=35+45
Y=80 PROJECTED SALES IN THE 7 th. MONTH.
OCTOBER WOULD BE MONTH 7
+graph%28+300%2C+200%2C+-6%2C+10%2C+-10%2C+90%2C+5x+%2B45%29+ (graph 300x200 pixels, x from -6 to 10, y from -10 to 90, 5x +45).