Question

The table lists the price P of a
first-class postage stamp for selected year’s t.
t 1963 1975 1987 2002 2007
p $.05 $.13 $.25 $.37 $.41
(a) Find the slope of each line segment connecting consecutive data points in the table. Can these data be modeled with a line? Explain.
(b) Does the polynomial 0.835t – 1635 model the
data in the table exactly? Explain

Answer 1

I need to turn this in before 7 tonight, Monday, please help

Answer 2

changes in p(cents): 8 12 12 4
changes in t(years): 12 12 15 5
slope on interval(cents/yr): 3/2 1 5/4 5/4

No single line models the data exactly

Answer 3

oops. I wrote the slope reciprocals (years/cent). Still no single line fits all the data points.