Find an equation of the line described below. Write the equation in slope-intercept form (solved for y), when possible. Through (11,9) and (9,11) What is the equation of the line?

 y = -x + 20

Step-by-step explanation:

Given:

- Two points ( 11 , 9 ) and ( 9 , 11 )

Find:

- The equation of the line passing through given points

Solution

- The equation of a linear line is given as :

                            y = m*x + C

Where, m: the slope

            C: The y-intercept

- The slope of the line m is determined by:

                           m =  ( y_2 - y_1 ) / ( x_2 - x_1)

                           m = ( 11 - 9 ) / ( 9 - 11 )

                           m = -1

- The y-intercept of the line is determined by:

                           y_1 = -x_1 + C

                            C = y_1 + x_1

                            C = 20

- The equation of the line passing through the given points as follows:

                            y = -x + 20

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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