The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420) gave the accompanying data on y = maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and x = squawfish length, both in mm. Here is the computer software printout of the summary:

Coefficients:
	Estimate	Std. Error	t value	Pr(> |t|)
(Intercept)	90.020	16.750	5.374	0.000
Length	0.717	0.049	14.596	0.000

Using this information, give the equation of the least squares regression line and the 95% confidence interval for the slope.