ikshjbdckoj
What is the graph of the function?
y = 2 · 2^x



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ikshjbdckoj
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ikshjbdckoj
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ikshjbdckoj
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ikshjbdckoj
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anonymous
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first is out, graph is going down when it should be going up

anonymous
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fourth is out for the same reason

anonymous
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second looks good
you have \((1,4)\) on the graph and \(2\times 2^1=4\)

anonymous
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also \((2,8)\) is on the graph, and \(2\times 2^2=8\) so i would go with the second option

ikshjbdckoj
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y = –2 · 5x

ikshjbdckoj
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this is for the second graph.

ikshjbdckoj
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ikshjbdckoj
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stamp
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\[y=2*2^x=2^{x+1}\]

ikshjbdckoj
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ikshjbdckoj
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ikshjbdckoj
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Do any of ya'll know this?

anonymous
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not 1 or 3 or 4

ikshjbdckoj
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so it's the 2nd one again?

anonymous
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yes