The inches of rainfall on mount waiale on Kauai in Hawaii is represented by the function f(x)=3^x+1-22 scientist are useing equations to study rain fall from year to year​. Calculate how much rainfall there was in year four and In year nine. You must show all of your work and calculate.

Step-by-step explanation:

we are given a function

where x represents the years f(x) represents the amount of rainfall

so to figure out the amount of rainfall in year 4 we can substitute 4 for x

simplify addition:

simplify square:

simplify substraction:

likewise In the year 9

simplify addition:

simplify square:

simplify Substraction:

hence,

there was 221 and 59027 in year four and In year nine

c

step-by-step explanation: