By definition of absolute value,
Differentiating once gives
As
from either side, we find that
, so really
Differentiating again, we find
but this time, the limit does not exist as
from either side, so
is undefined. However, we see that
when
, and
when
, and we know that
is continuous at
. This means the concavity must change at
, so (0, 0) is the inflection point. (The takeaway is that inflection points *can* occur when the second derivative is undefined, but not always.)
4x+20 = 3x - 28
x + 20 = -28
x = - 48
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h t t p s : / / w w w . y o u t u b e . c o m / w a t c h ? v = Y B u y R P r W 6 Q g & t = 1 0 s
Answer:
The area [I'm pretty sure] is 600 meters squared
Step-by-step explanation:
25 x 24 = 600
Answer:
loss by $960
Step-by-step explanation:
The purchase price of the car = $6000 ----------(A)
The percentage increment = 40%
Hence increment = 40% of $6000
= 0.40 x $6000
=$2400
Hence New Selling price for the lady = $6000+$2400= $8400
now as she was unable to sell the ca at this price. The price was educed by 40%
Hence reduced price = 40% of new selling price
=40% of $8400
=0.40 x $8400
=$3360
Hence Final Selling price = $8400 - $3360
= $5040 -----------(B)
Since
(A) > (B)
Purchase price is bigger than the final sold price
Thee will be loss by $6000-$5040= $960