You are using 0.05 gallons per mile of a SUV gas tank that holds 16 gallons. Note: this equation has a negative slope (m). Use x-values: 0, 160, and 320. I think the problem should be y=.05x+16 Confused since the teacher says it has a negative slope.

Question

You are using 0.05 gallons per mile of a SUV gas tank that holds 16 gallons. Note:  this equation has a negative slope (m).  Use x-values: 0, 160, and 320. I think the problem should be y=.05x+16 Confused since the teacher says it has a negative slope.

Steve · Answer

If you are computing the volume of gas in the tank vs miles driven, then naturally as the miles go up, the gas goes down. Try y = 16 - .05x