After plotting he data where x=area, and f(x)=the length of one side of the square, sam determined the appropriate model to approximate the side of a square was f(x)= √x-1+1 . use the model sam created to predict the side length of the square when the area is 26.

6

Step-by-step explanation:

Given data:

x=area

f(x)=the length of one side of the square

Also the model of f(x)=

Now determining length of one side of the square f(x), when Area x of square is 26:

Putting the value x=26 in given equation of f(x)

f(x)=

   =

  = 5 +1

   = 6

Hence length of one side of the square f(x) is 6, when Area x of square is 26 !

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9