2. The cost of gasoline is always a concern. The graph below reflects predictions for the cost of gasoline in the next year.
a. Determine the independent and dependent variable for the problem, including any units.
b. Determine the slope for the problem situation. Be sure to include units.
c. Write the point-slope of the equation. Modify this equation to the slope intercept form of a linear equation.
d. Using the graph below, how many gallons of gas can be purchased for $31.60?
e. Interpret the slope in context.