SOLUTION: The average sea-level in 1900 at London-bridge was 33 feet. In 1990 it was 33.08 feet. Use linear interpolation or extrapolation to find:
(a) What the average sea-level was in 19
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Question 1052269: The average sea-level in 1900 at London-bridge was 33 feet. In 1990 it was 33.08 feet. Use linear interpolation or extrapolation to find:
(a) What the average sea-level was in 1961. (in feet)
(b) In what year the average sea-level will be 35 feet.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of years after 1900
Calll 1900
Then 1990 is
Let = height in feet
--------------------------
You are gven the points
( 0, 33 )
( 90, 33.08 )
Use general point-slope formula
Multiply both sides by
( equation to use )
--------------------------
Check:
does it go through ( 90, 33.08 ) ?
close enough
-------------------------------
(a)
In 1961, the height will be 33.05 ft
-----------------------
(b)
The height will be 35 ft in 4150
-----------------------------
check my math
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