## Algebra 1

The relation is a linear function. For every decrease in gallons of gas, the miles traveled increases by 17 miles. Equation: y=-$\frac{1}{17}$x+11.2
The relationship is a linear function because the graph decreases by 1 gallon every time for every 17 miles traveled Equation: Slope: $\frac{(y_{2}-y_{1})}{(x_{2}-x_{1})}$ $\frac{(9.2-10.2)}{(34-17)}$ $\frac{-1}{17}$ slope=$\frac{-1}{17}$ y-int: y=$\frac{-1}{17}$x+b (substitute any x & y value from the table) 11.2=$\frac{-1}{17}$(0)+b 11.2=0+b 11.2=b Equation: y=$\frac{-1}{17}$x+11.2