Achemist has 500 ml of a 30% acid solution. she adds x milliliters of a 10% acid solution. which statement is true about the graph of the function that represents the concentration of the final solution? the horizontal asymptote y = 30 means that the final concentration will always be less than 30%. the horizontal asymptote y = 10 means that the final concentration will always be greater than 10%. the vertical asymptote x = 500 means that the volume of solution will always be greater than 500 ml. the vertical asymptote x = 0 means that the volume of the solution will always be greater than 0.