document.write( "Question 973866: Write the nth term of the geometric sequence as a function of n.
\n" ); document.write( "\"+a_1+=+-3_1+\" , \"+a_%28k%2B1%29+=+-4a_k+\"
\n" ); document.write( "The underscore denotes a value in subscript, and thank you!!
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Algebra.Com's Answer #595981 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
a_1 = -3-1 = -4
\n" ); document.write( "a_n = (-4) * (-4)^(n-1) = (-4)^n
\n" ); document.write( "note that the common ratio is -4
\n" ); document.write( "the sequence looks like
\n" ); document.write( "-4, 16, -64, 256, .....\r
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