anonymous
  • anonymous
Which of the following functions represents the following graph? f(x) = – |x| + 2 f(x) = –x + 2 f(x) = –x2 + 2 f(x) = –x3 + 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
1 Attachment
Luigi0210
  • Luigi0210
well it's a parabola..
ganeshie8
  • ganeshie8
and its facing downwards

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More answers

Luigi0210
  • Luigi0210
|dw:1371189521909:dw|
Luigi0210
  • Luigi0210
or -x^3
anonymous
  • anonymous
sooo its c ? im a little confused.
ganeshie8
  • ganeshie8
good guess :) it has to be c ! oly c is quadratic in the options
anonymous
  • anonymous
soo i was right ? yaee thankkss very muchooo ! (:
anonymous
  • anonymous
What is the solution to the equation 7 3x ≈ 9 ? x = 0.376 x = 0.295 x = –0.295 x = –0.376
Luigi0210
  • Luigi0210
:l
anonymous
  • anonymous
idk how to do it :(
Luigi0210
  • Luigi0210
is there a sign between the 7 and 3x?
ganeshie8
  • ganeshie8
is the 3x in exponent ?
anonymous
  • anonymous
yesss.
ganeshie8
  • ganeshie8
take log both sides
Luigi0210
  • Luigi0210
Do you know how to convert to logs? @Lesha
anonymous
  • anonymous
nooooo :(. i did it in vhemistry but i never could figure it out.
ganeshie8
  • ganeshie8
its a simple thingy much simpler than the polynomial stuff uve been doing so far
anonymous
  • anonymous
so is it lod7^3=2.53 and log 9 =0.95
ganeshie8
  • ganeshie8
\(\large 7^{3x} = 9\)
ganeshie8
  • ganeshie8
\(\large 7^{3x} = 9\) take log base7 both sides \(\large \log_7 7^{3x} = \log_7 9\)
ganeshie8
  • ganeshie8
\(\large 7^{3x} = 9\) take log base7 both sides \(\large \log_7 7^{3x} = \log_7 9\) \(\large 3x \log_7 7 = \log_7 9\)
ganeshie8
  • ganeshie8
\(\large 7^{3x} = 9\) take log base7 both sides \(\large \log_7 7^{3x} = \log_7 9\) \(\large 3x \log_7 7 = \log_7 9\) \(\large 3x = \log_7 9\)
ganeshie8
  • ganeshie8
do u knw how to use calculator and find log fo a number ?
Luigi0210
  • Luigi0210
couldn't we just use \[\log_{7} 9=3x\]
Luigi0210
  • Luigi0210
nvm I was late >.>
anonymous
  • anonymous
ill try
ganeshie8
  • ganeshie8
\(\large 7^{3x} = 9\) take log base7 both sides \(\large \log_7 7^{3x} = \log_7 9\) \(\large 3x \log_7 7 = \log_7 9\) \(\large 3x = \log_7 9\) \(\large 3x = \log_7 9\) \(\large 3x = \frac{\log 9}{\log 7}\)
ganeshie8
  • ganeshie8
use ur calculator and find wats \(\log 9\)
ganeshie8
  • ganeshie8
use ur calculator and find wats \(\log 7\)
ganeshie8
  • ganeshie8
divide
anonymous
  • anonymous
ii did and i got 0.885
Luigi0210
  • Luigi0210
Haha, @ganeshie8 is a genius :P
ganeshie8
  • ganeshie8
lol , try again doesnt look correct
ganeshie8
  • ganeshie8
knw what, u did the division reverse
ganeshie8
  • ganeshie8
check it once
anonymous
  • anonymous
okk so so is it lod7=0.85 and log 9 =0.95 . am i right so far ?
ganeshie8
  • ganeshie8
yes, now take log 9 / log 7
ganeshie8
  • ganeshie8
0.95/0.85 = ?
anonymous
  • anonymous
i got 1.11
ganeshie8
  • ganeshie8
thats right, so 3x = 1.11 x = ?
anonymous
  • anonymous
0.37
anonymous
  • anonymous
thats the answer . thanksss veryy muchh (:
ganeshie8
  • ganeshie8
np :)
Luigi0210
  • Luigi0210
Another soul enlighten, way to go! @ganeshie8
ganeshie8
  • ganeshie8
lol, Lesha amazes me shes in oly her highschool and does these nasty problems for Algebra honors !

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