At a depth of X metres, the temperature of the water is an ocean is T°C. At depths below 900 meters, T is inversely proportional to X. T is given by T=4500/X. Work out the difference in the temperature of the water at a depth of 1000 metres and the temperature of the water at a depth of 2500 metres.

c

step-by-step explanation:

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.