If we double the costs, then we are going to stretch the graph vertically (B). Here is why. If the cost was $6 in 2010 then it doubles in 2011 the new cost would be $12 for the same amount of refrigerators in 2010. Thus the stretch vertically
Step-by-step explanation:
the perfect squares =
81, 121, 625
The slope is
(difference in y-values) / (difference in x-values)
= (-4) / (-5)
= 0.8
Answer:
19? 21?
Step-by-step explanation:
Well there is 24 hours in a day so 24 - 15 = 9. So he spends 9 hours awake.
