Amelia earned $40 for 5 hours. The amount of money earned by Amelia while babysitting Y and the number of hours spent babysitting X are in a proportional linear relationship. This situation can be represented by Y = 8x

The slope of the line is 8, and this value is determined by inspection of the coefficient on when the equation is in Slope-Intercept form. The given equation is in Slope-Intercept form. The interpretation of the slope in the context of this problem is that it is the hourly rate of pay for babysitting