d4aischamadolleLisa d4aischamadolleLisa
  • 19-11-2016
  • Mathematics
contestada

f you rent a car for one day and drive it for 100 miles, the cost is $40.00. If you drive it 220 miles, the cost is $46.00.

What linear equation would represent the data points?

Respuesta :

BradlyB
BradlyB BradlyB
  • 19-11-2016
y=x+35 x is miles in 20 mile increments
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nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 21-11-2016
Let x represent the number of miles travelled and y the cost. Then
y - 46 = (46 - 40)/(220 - 100) (x - 100)
y - 46 = 6/120 (x - 100)
y - 46 = 1/20(x - 100)
20(y - 46) = x - 100
20y - 920 = x - 100
x - 20y = -820
Answer Link

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