Only table D is a function. All of the others fail the "vertical line test." The definition of a function is for each input there is only one unique output. So for example, any given input value of x, there can only be one unique output value for y.
answered: Guest
why are you giving so many marks make your marks less and make a question list so that i can understand your question very nicely
answered: Guest
chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.