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Key Concept Quiz 6.6
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1
A line passes through the points (–2, –8) and (1, 1). Find the slope of the line.
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C)–3
D)3
2
Find the y-intercept of the line in question#1.
A)2
B)–2
C)3
D)–3
3
Write the equation of the line in question#1.
A)y = 3x – 2
B)y = 3x + 2
C)y = –3x – 2
D)y = –3x + 2
4
Scott took his kittens to the vet in a "pet taxi". The vet found that the taxi plus 3 kittens had a mass of 4.4 kg. When she removed two of the kittens, the mass was 2.0 kg. Find the mass of the pet taxi.
A)1.2 kg
B)1.0 kg
C)0.8 kg
D)0.6 kg
5
Write an equation that relates mass m to the number of kittens in the taxi n.
A)m = 0.8n + 1.2
B)m = 0.8n – 1.2
C)m = 1.2n – 0.8
D)m = 1.2n + 0.8





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