When is a solution considered to be saturated?
1. when the container overflows
2. when no more solute can dissolve in solvent
3. when the container is empty
4.when half of the solute is dissolved in solvent

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)