document.write( "Question 1197442: Find the equation for an exponential function that passes through the pair of points given below. (Round all coefficients to four decimal places when necessary.)
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\n" ); document.write( "(−1, −4) and (2, −0.5)
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Algebra.Com's Answer #830716 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
y=a*b^x\r
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\n" ); document.write( "\n" ); document.write( "\"ab%5Ex=y\"\r
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\n" ); document.write( "\n" ); document.write( "first point
\n" ); document.write( "\"a%2Ab%5E%28-1%29=-4\"
\n" ); document.write( "\"a%2Fb=-4\"
\n" ); document.write( "\"b%2Fa=-1%2F4\"
\n" ); document.write( "\"a=-4%2Fb\"\r
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\n" ); document.write( "\n" ); document.write( "second point
\n" ); document.write( "\"ab%5E2=-0.5\"
\n" ); document.write( "\"%28-4%2Fb%29b%5E2=-0.5\"
\n" ); document.write( "\"%284%2Fb%29b%5E2=0.5\"\r
\n" ); document.write( "\n" ); document.write( "\"4b=0.5\"\r
\n" ); document.write( "\n" ); document.write( "\"b=0.5%2F4\"
\n" ); document.write( "\"b=5%2F40\"
\n" ); document.write( "\"highlight_green%28b=1%2F8%29\"\r
\n" ); document.write( "\n" ); document.write( ".\r
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