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According to the chart, in which two-month period did electr

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sandy
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According to the chart, in which two-month period did electr [#permalink] New post   10 Oct 2018, 19:08
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According to the chart, in which two-month period did electric energy cost increase the least?
(A) Between January and February
(B) Between April and May
(C) Between May and June
(D) Between June and July
(E) Between November and December
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B
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pranab223
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Re: According to the chart, in which two-month period did electr [#permalink] New post   17 Apr 2020, 20:59
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sandy wrote:
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According to the chart, in which two-month period did electric energy cost increase the least?
(A) Between January and February
(B) Between April and May
(C) Between May and June
(D) Between June and July
(E) Between November and December


Here,

to find the least change, we need a line that is almost horizontal.

From the graph, the line between April and May is almost horizontal and that period is least change in cost
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Re: According to the chart, in which two-month period did electr [#permalink] New post   24 Jun 2021, 23:05
Shouldn't the answer be (A) January to February, since there is a decrease or negative increase? As opposed to 0 increase for the period April to May?
Where am I going wrong?
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Re: According to the chart, in which two-month period did electr [#permalink] New post   25 Jun 2021, 00:34
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siffyB wrote:
Shouldn't the answer be (A) January to February, since there is a decrease or negative increase? As opposed to 0 increase for the period April to May?
Where am I going wrong?


According to the chart, in which two-month period did electric energy cost increase the least?

read carefully the stem

Hope now is more clear
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Re: According to the chart, in which two-month period did electr [#permalink] New post   25 Jun 2021, 21:49
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From the chart we have to find the two month period where the two dots are as close in the height as possible because the line joining them would be most horizontal and the slope will be almost 0. If the slope is 0 then the increase in the y coordinate is the least and the energy cost increases the least. The only line or the two month period that satisfies the following is the April-May one.
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