Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (Each pair of variables has a significant correlation.) Then use the regression equation to predict the value of y for each of the given xvalues, if meaningful. The caloric content and the sodium content (in milligrams) for 6 beef hot dogs are shown in the table below.
Calories,x 
150 
170 
120 
130 
70 
190 
(a)
x=180 calories 
(b)
x=80 calories 


Sodium, y 
430 
480 
350 
370 
270 
510 
(c)
x=140 calories (d) x=210 calories 
y^ = _x + (_)
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