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 .
Answer:
Step-by-step explanation:
Answer:
I think it's the amount of money Mary earns for 10 hours worked.
Step-by-step explanation:
Answer:
8 spools
Step-by-step explanation:
48 divided by 6
Answer:
x = 4, y = 3
Step-by-step explanation:
Equating corresponding coordinates , gives
2x = 8 ( divide both sides by 2 )
x = 4
and
3y = 9 ( divide both sides by 3 )
y = 3