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Which one of the following could be the graph of 3-6 4 2 2

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Senior RC Moderator
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Which one of the following could be the graph of 3-6 4 2 2  [#permalink]

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04 Sep 2017, 00:33
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89% (01:11) correct 11% (00:57) wrong based on 47 sessions

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Which one of the following (Attached) could be the graph of 3-6x ≤ $$\frac{4x+2}{-2}$$?

A
B
C
D
E

Attachments

BB.jpg [ 15.65 KiB | Viewed 916 times ]

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Posts: 7686
Re: Which one of the following could be the graph of 3-6 4 2 2  [#permalink]

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04 Sep 2017, 04:04
1
Which one of the following (Attached) could be the graph of 3-6x ≤ $$\frac{4x+2}{-2}$$?

A
B
C
D
E

Hi..
$$3-6x$$≤ $$\frac{4x+2}{-2}$$....
3-6x≤ -2x-1
3+1≤6x-2x
1≤ x..
Only D fits in..

OR..

Find if equation fits in are x=0.... It doesn't.. B and E can be eliminated
Next try x =-1... Equation again doesn't fits.. A and C can be eliminated
Ans D
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Which one of the following could be the graph of 3-6 4 2 2  [#permalink]

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04 Sep 2017, 12:49
Which one of the following (Attached) could be the graph of 3-6x ≤ $$\frac{4x+2}{-2}$$?

A
B
C
D
E

3-6x ≤ $$\frac{4x+2}{-2}$$

Multiply by -2, reverse inequality sign:

-2(3 - 6x) $$\geq$$ 4x + 2
-6 + 12x $$\geq$$ 4x + 2
8x $$\geq$$ 8
x $$\geq$$ 1

Only graph D satisfies.

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Which one of the following could be the graph of 3-6 4 2 2   [#permalink] 04 Sep 2017, 12:49
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