Which function has the graph below?

C

Step-by-step explanation:

The general rule for the quadratic function is

From the graph you can see that the curve passes through the points (2,4), (1,7) and (3,7), so

We get the system of three equations:

Subtract these equations:

From the second equation:

Substitute it into the first equation:

So,

and

The quadratic function is

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.

hope this < 3

step-by-step explanation: