Answer:
Neither linear nor exponential
Step-by-step explanation:
To check for a linear relationship.  Find slope.
slope=  (-1  -  (-2)) / ( 5 - 2)  = 1/3
check  other points
slope = (1 - (-1) )/ (8 - 5) =  2/3
check more
slope = (4 - 1) / (11 - 8) = 3/ 3 = 1
Nope.
try assuming an exponential:
y = c * (a^x)
-2 =  c* (a^2);    -2/c = a^2
-1 = c *(a ^5);    -1/c = a^5
1 =  c * (a^8),     1/c = a^8
(-2/c)^4 = a^8 = 1/c
16/(c^4) = 1/c
c^3 = 16,  then    a = root (-2/ cube-root(16) )
The change from negative to postive  would not work  for y = c(a^x)
so...
assume   y =  a^x  + k
-2 = a^2  + k
-1 = a^5  + k
...  I would say neither..
 
        
             
        
        
        
Answer:
New length is 3 3/20 ft. 
Step-by-step explanation:
The total board is 2 5/8 feet long. And since 5/6 of a foot is trimmed off, that means each piece of wood is 5/6 feet.
We can now set up an equation like this ---> 5/6 ⋅ x = 2 5/8
Now we're going to simplify --->  5/6 ⋅ x = 2 5/8
                                                       5/6 ⋅ x = 21/8              
                                                       (multiply both sides by 6)
                                                       5x = 63/4
                                                       (divide both sides by 5)
                                                       x = 63/20
                                                       x= 3.15 
So, the new length is 3.15 feet long, or 3 3/20 in mixed fraction. 
 
        
             
        
        
        
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Step-by-step explanation:
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