A (I cant say it on here for some reason )water fish tank requires a certain salinity. To reach this requirement, the relationsh
ip between gallons of water and pounds of salt needs to be proportional. The relationship can be modeled as a line on the coordinate plane where x represents the number of gallons of water and y represents the number of pounds of salt. If the line passes through the point (5,1.5) , what does that point represent?
