Course challenge Which rule describes the relationship between the C- and y-coordinates on the following graph? y 1 10- 9+ 8+ 6+ 5+ 4+ 3 3+ 2+ 2 1 2 3. 4 5 6 7 8 9 10 Choose 1 y=x-1 y = x +1​

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.