anonymous
  • anonymous
Inverse of Log base 4 of x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
y=4^x\[f(x)=4^x\] ?
anonymous
  • anonymous
Yes Perto! xD
anonymous
  • anonymous
*gasp i was thinking that! well there's one i got right on the test..

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anonymous
  • anonymous
Now, try this one! Log base 2 of x + 3
anonymous
  • anonymous
the inverse of that?
anonymous
  • anonymous
yesh!
anonymous
  • anonymous
f(x)= 2^(x+3)
anonymous
  • anonymous
?
anonymous
  • anonymous
Nope!
anonymous
  • anonymous
D:
anonymous
  • anonymous
f(x)= 2^x ?
anonymous
  • anonymous
wait a sec!
anonymous
  • anonymous
wait lemme see!
anonymous
  • anonymous
where's hanh?
anonymous
  • anonymous
The answer is y = 2^x - 3
anonymous
  • anonymous
why minus?
anonymous
  • anonymous
can you show me how you did that
anonymous
  • anonymous
cuz its the inverse
anonymous
  • anonymous
darn..that means i probably got that wrong in the test. :\
anonymous
  • anonymous
Okie! So it's: y = Log base e of x + 3, NOT (x+3) So it's 2^y = x + 3 There fore, 2^x - 3 = y
anonymous
  • anonymous
id remember if i got that right
anonymous
  • anonymous
base 2*
anonymous
  • anonymous
next problem
anonymous
  • anonymous
Log base x of 3x
anonymous
  • anonymous
thats wierd
anonymous
  • anonymous
x ^ y = 3x Inverse = x^x = 3y, so it's y = (x^x) / 3
anonymous
  • anonymous
thats wierd
anonymous
  • anonymous
okay, I'll change base x to base 2
anonymous
  • anonymous
why?
anonymous
  • anonymous
so that you won't be confuse with which x to switch
anonymous
  • anonymous
2^y or x^y in the original = 3x Inverse = 2^x original x^x = 3y so divide both side by 3 to get y y = (2^x)/3 or (x^x)/3 in the original

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