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When x increases from a to a + 2, y increases by a difference of 6. For which functions is this statement true? A.y = 2(3)^x B.y = 2(9)^x C.y = 3x + 2 D.y = 9x + 2
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When x increases from a to a + 2, y increases by a difference of 6. For which functions is this statement true? A.y = 2(3)^x B.y = 2(9)^x C.y = 3x + 2 D.y = 9x + 2
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Mar 15, 2019
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When x increases from a to a + 2, y increases by a difference of 6. For which functions is this statement true?
A.y = 2(3)^x
B.y = 2(9)^x
C.y = 3x + 2
D.y = 9x + 2
Mathematics
high-school
Big Rich
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2
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1
vote
Answer:
C
Explanation:
USATestPrep
Boschman
answered
Mar 16, 2019
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Boschman
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6
votes
x2-x1
=a+2-a=
2
y2-y1
= 3x2 +2 -3x1 -2= 3(x2-x1)=3*2=
6
correct answer is C
if D, then
y2-y1=9(x2-x1)=9*2=18, so D is wrong
Tuan Chau
answered
Mar 22, 2019
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Tuan Chau
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