What is the image of (7,8) after a reflection over the line y = –x

(-7. -8) Just flip the signs.

Step-by-step explanation:

When a point is reflected over y=-x, the following change occurs:

   ⇒  

We are given the point (7,8).

Essentially, we change the signs for both coordinates, then flip the x-coordinate and y-coordinate.

1. Change the signs

   ⇒    

2. Flip the x and y coordinates

  ⇒    

So the image of (7,8) after a reflection over y=-x is (-8,-7)

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

i got 142 as my answer

step-by-step explanation: