Sat 2015 Practice Test #1 Answer Explanations

Choice D is correct.
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2-decagram container.
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is the number of milligrams in 2 grams, not the number of milligrams 
in 2 decagrams. 
QUESTION 7 
Choice C is correct.
Let 
[
represent the number of installations that 
each unit on the 
y
-axis represents. Then 9
[
, 5
[
, 6
[
, 4
[DQG[
are 
the number of rooftops with solar panel installations in cities A, B, C, 
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it follows that 9
[
+ 5
[
+ 6
[
+ 4
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27.5
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y
-axis is “Number of installations (in thousands).”
Choices A, B, and D are incorrect and may result from errors when 
setting up and calculating the units for the 
y
-axis. 
QUESTION 8 
Choice D is correct.
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absolute value of 
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be negative. Thus |
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values for 
Q
for which the value of |
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QUESTION 9