document.write( "Question 1192789: Find a formula for the exponential function that satisfies g(0)=13 and g(-2)=13/6 \n" ); document.write( "
Algebra.Com's Answer #824689 by greenestamps(13203)\"\" \"About 
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\n" ); document.write( "\"g%28x%29=ab%5Ex\"

\n" ); document.write( "Knowing g(0), we can find the value of a quickly.

\n" ); document.write( "\"g%280%29=ab%5E0=a%281%29=a=13\"

\n" ); document.write( "So a=13; the equation is \"g%28x%29=13b%5Ex\". Use that in the equation for the other given point to find b.

\n" ); document.write( "\"g%28-2%29=13%28b%5E%28-2%29%29=13%2F6\"
\n" ); document.write( "\"b%5E%28-2%29=1%2F6\"
\n" ); document.write( "\"b%5E2=6\"
\n" ); document.write( "\"b=sqrt%286%29\"

\n" ); document.write( "The exponential function is \"g%28x%29=13%28%28sqrt%286%29%29%5Ex%29\"

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