ANSWER
B) -1
EXPLANATION
From the graph,
f(1)=3 and f(4)=0.
The average rate of change from x=1 to x=4 of this function is,

Substitute the functional values

Simplify

The correct choice is .
11x+2=68
-2 -2
11x=66
/11 /11
X=6
I think it is 5 !!!!!!!!!!!!!!
Answer:
6
reduce the expression and if possible do that by cancelling the common factors :)