The following table shows the values of methylmercury consumption and total blood mercury concentration of 12 individuals exposed by consuming contaminated fish.

Consumed Mercury Mercury on blood

180 90

200 120

230 125

410 290

600 310

550 290

275 170

580 375

105 70

250 105

460 205

650 480

Find the regression equation.

y = 0.6407x - 20.579

y = -20.579x - 0.6407

y = 9.873x + 6.712

y = 0.6704x - 25.597