statistic college algebra
Statistics

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Peter goes on a diet to lose weight. Let the input t represent the week of his diet, and let the output W represent Peter's weight in pounds. At the start of his diet (
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Let W = mt + b be the linear relationship between t and W.
When t = 0 , W = 215
Therefore 215 = (0)t + b
b = 215
==> W = mt + 215
When t = 6, W = 197
Therefore 197 = m(6) + 215
197  215 = 6m
18 = 6m
m = 3
==> W = 3t + 215
A community college charges $26.00 per unit plus a $40.00 health fee. Let the input u represent the number of units enrolled in, and let the output T represent the tuition (charges) for that semester.
(a) Find the equation of the line that describes this relationship.
(b) Interpret the slope in terms of the problem situation.
The slope represents that the cost of tuition increases by dollars for each unit.
(c) Interpret the intercepts in terms of the problem situation. (For any answers that need to be rounded, round to the nearest integer.)
The point (u, T) =  
The point (u, T) = 
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