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Mathematics 21 Online
OpenStudy (ericwise):

The point (-5, n) exists on the exponential graph. If the function has the form y = ab^x + k, the value of n is:

OpenStudy (ericwise):

OpenStudy (ericwise):

Steps to solving? Will gift good music to contributors!

OpenStudy (anonymous):

d,

OpenStudy (ericwise):

please elaborate ^^^

OpenStudy (ericwise):

heya sat73

OpenStudy (anonymous):

looks like \(k=-3\)

OpenStudy (ericwise):

Could you please describe how you got the answer?

OpenStudy (ericwise):

oh sorry, yes thats right

OpenStudy (anonymous):

ok

OpenStudy (ericwise):

the h. asymptote

OpenStudy (ericwise):

Getting late for me... hah..

OpenStudy (anonymous):

then we have \[y=ab^x-3\] and we also have \[f(0)=-2\] so \[a-3=-2\] making \(a=1\)

OpenStudy (anonymous):

now we are at \[f(x)=b^x-3\] and \[f(-1)=b^{-1}-3=-\frac{3}{2}\]

OpenStudy (anonymous):

that makes \[\frac{1}{b}=\frac{3}{2}\] or \[b=\frac{2}{3}\]

OpenStudy (ericwise):

ahh okay!|dw:1418183345595:dw|

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