A 20% increase followed by a 25% decrease. Is it same as the original less than the original or greater than the original
2 answers:
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Step-by-step explanation:
To find x,
To find arc AB,
To find Arc AE,
Arc ABC,
ACE
has a horizontal tangent line at
, and it's clear from the plot that
is increasing to the left and descreasing to the right. This means
when
, so there is an inflection point there and only statement II is true.
Statement III is not true because critical points only occur where or (possibly) when
is undefined. Clearly
when
.