EmmaPoole_CarCosts

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  • Well, let's do some math. To find how much it would cost me monthly, just use the equation c= .12d + 330. The c represents cost, and the d represents the distance traveled!
  • How much does the car you own cost you each month?
  • So, you multiple the number of kilometers traveled by 0.12 and add 330! If I travel 1000 km a month, it will cost me about $140. And if I travel 2000 km? It will cost me $570.
  • So the distance -intercept would be 1 km for every 0.12 cents?? That means that the cost depends on how far you drive.....
  • So how is that suppose to help me?
  • Thinking back to the work we have already done, I could drive 2,250 km without exceeding $600.
  • Then how far could you drive without exceeding a monthly cost of $600??
  • Say I were to graph this situation, what would be the cost-rate intercept??
  • The cost-rate intercept would be $330!
  • Exactly!
  • One last question! What would be the slope??
  • Well, the slope would be .12 cents per km! This number represents the rate at which the rate of change/information changes!
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