Given:
The cost of boat in 2011 is $35,000.
The cost of boat in 2012 is $27,300.
The objective is to find,
a) The linear function f(t).
a) The exponential function g(t).
Step-by-step explanation:
Consider the given points as,

a)
The linear equation using two points can be calculated as,

On plugging the coordinates in equation (1),

Hence, the linear function is f(t) = -3850x+7777350.
b)
The exponential function can be calculated as,

First substitute (x1,y1) in equation (1).

Now, substitute (x2,y2) in equation (2),

To find b:
Divide the equations (2) and (3).

To find a:
Now, substitute the value of b in equation (2).
