The accompanying data was read from a graph. The independent variable is SO₂ deposition rate (mg/m²/d) and the dependent variable is steel weight loss (g/m²).

x	12	18	36	43	45	111
y	270	350	470	500	560	1230

(a) Construct a scatter plot.
Does the simple linear regression model appear to be reasonable in this situation?

Yes, the scatter plot shows a reasonable linear relationship.No, the scatter plot does not show a reasonable linear relationship.

(b) Calculate the equation of the estimated regression line. (Round all numerical values to two decimal places.)
y =

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