5) The global sea level could rise due to partial melting of the polar ice caps. The table
represents a function R that models this expected rise in sea level in centimeters for the year t.
(This model assumes no changes in current trends).
t (year)
R(t)
(centimeters
)
1990
0
2000
1
2030
18
2070
b) Use R(t) to construct a table for R-¹(t). Interpret R-¹.
44
a) Is R a one-to-one function? Explain.
R is a one-to-one because there are no repeated outputs for the input values
2100
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