for my lab 6, they ask me to find The amount of work needed to empty the object of water by pumping it over the edge. my vase gave me 4 equations which are: y₁= -0.0527x² + 0.5328x + 2.6450 x 7.5/ y₂ = 0.0471x² - 1.3403x + 11.072 | 7.5 x 14.8/ y₃ =0.0179x² - 0.4444x + 4.1796 14.8 x 19.5 and y₄ = 0.347x² - 14.106x + 145.4319.5 x 22. the vase can contain 450mL of water and has height=22cm.

how can i find the work with these pieces of infos