document.write( "Question 1129908: Find the equation of both the line and exponential curve going through the point (2,9) with the y-intercept=5. For both curves, if x=7, find the corresponding y value and express to 4 decimals.\r
\n" ); document.write( "\n" ); document.write( "a. Line equation (slope form) and y value for x=7\r
\n" ); document.write( "\n" ); document.write( "b. exponential equation (y=Ce^ax) and y value for x=7
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Algebra.Com's Answer #746577 by josgarithmetic(39618)\"\" \"About 
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The exponential equation:\r
\n" ); document.write( "\n" ); document.write( "Points (2,9) and (0,5);\r
\n" ); document.write( "\n" ); document.write( "Equation form \"y=Ce%5E%28ax%29\"\r
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\n" ); document.write( "\n" ); document.write( "The intercept point means \"C=5\".\r
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\n" ); document.write( "\n" ); document.write( "The other point means:
\n" ); document.write( "\"9%2F5=e%5E%282a%29\"\r
\n" ); document.write( "\n" ); document.write( "\"ln%289%2F5%29=2a\"\r
\n" ); document.write( "\n" ); document.write( "\"a=%281%2F2%29ln%289%2F5%29\"\r
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\n" ); document.write( "\n" ); document.write( ".
\n" ); document.write( "Equation is \"y=5%2Ae%5E%280.29389x%29\"
\n" ); document.write( "(the exponential equation)
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