Which of the following relations represents a function? {(4,2), (4,3), (4, 5), (4,7)} {(-2, 1), (0,5), (1, -3), (-2, 0)} {(-1, 3) (-2, 3) (-1, 5) (-2,5)} {(-3, 1), (1, 4), (-2, 1), (0, 3)}

{(-3, 1), (1, 4), (-2, 1), (0, 3)}

Step-by-step explanation:

If a set of ordered pairs represents a function, then there must not be any first coordinate that repeats itself more than once in any of the ordered pairs.

In other words, no x-coordinate should correspond to more than one y-coordinate.

From the given options, the only set of ordered pairs that satisfies the conditions of a function is;

{(-3, 1), (1, 4), (-2, 1), (0, 3)}

The correct answer is the last option.

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

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step-by-step explanation:

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