efreferwtfr
@Mertsj @phi
a=2? b=(ln(3)-ln(2))/(2ln(2))?
no b is wrong. how would you solve for b
b(0)=0
b=(ln(3)-ln(2))/(2ln(2))? close... where did the extra 2 come from in the bottom
haha not sure since it's wrong. which two is the extra?
at the point 1,3 (and with a=2) 2 * 2^(b*1) = 3
oh is it just ln(2) as the denominator?
you could do a few things 2^1 * 2^b is 2^(b+1) so you have 2^(b+1) = 3 solve by taking the log of both sides or 2* 2^b= 3 divide both sides by 2 2^b= 3/2 solve by taking the log of both sides
yup i got it
can you go through the steps?
yeah you get 2^b=3/2 and then you take the natural log of both sides which makes it b=ln(3/2)/ln(2)
yes, ln(2^b) is b*ln(2) ln(3/2) can also be written ln(3) - ln(2) b= ln(3)/ln(2) - ln(2)/ln(2) = ln(3)/ln(2) - 1 if we did it the other way 2^(b+1) = 3 (b+1) * ln(2) = ln(3) (after taking the log of both sides divide by ln(2): b+1 = ln(3)/ln(2) sub 1 b= ln(3)/ln(2) -1
@habibmatatta Now, as I was saying... 2=a(2)^b(0) 2=a(2)^0 2=a(1) a=2 Also from the second ordered pair 3=a(2)^(b(1) 3=2(2)^b 1.5=2^b log 1.5=b(log 2) .58=b y=2(2)^.(58x)
ok thanks
yw
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