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Key Concept Quiz 5.5
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1
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Consider the table shown. The first differences
A)show that the relation is linear.
B)show that the relation is non-linear.
C)cannot be used to determine the type of relation because the x-values do not change by a constant amount.
D)cannot be used to determine the type of relation because some of the y-values are negative.
2
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Consider the table shown. The first differences
A)are 2, 2, and 2.
B)are 2, 1, and –1.
C)are –2, –1, and 1.
D)are –2, –2, and –2.
3
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While attending an air show, Celeste took pictures of an aerobatic team in various formations. The first three formations are shown. If the pattern continues, how many aircraft will be in the next formation?
A)12
B)11
C)10
D)9
4
The relation between the formation number and the number of aircraft in question#3
A)is linear.
B)is non-linear.
C)cannot be determined, since too few formations are shown.
D)cannot be determined, since there are no negative y-values.
5
Predict which of these relations are non-linear.
A)All of these are non-linear.
B)y = 2 – 3x
C)y = 2x + 3
D)y = x2





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