document.write( "Question 65621: I need help to find an exponential function of the form f(x)=ba^x+c with y-intercept 2, horizontal asymptote y=-2, that passes through the point P(1,4).\r
\n" ); document.write( "\n" ); document.write( "Does anyone grasp this?
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Algebra.Com's Answer #46264 by venugopalramana(3286)\"\" \"About 
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I need help to find an exponential function of the form f(x)=ba^x+c with y-intercept 2, horizontal asymptote y=-2, that passes through the point P(1,4).
\n" ); document.write( "Does anyone grasp this?
\n" ); document.write( "Y=B*A^X+C
\n" ); document.write( "IT GOES THROUGH (1,4)...SO
\n" ); document.write( "4=B*A^1+C=AB+C............................1
\n" ); document.write( "HORIZINTAL ASYMPTOTE IS Y=-2...THAT IS AS X TENDS TO + OR - INFINITY Y TENDS TO -2.
\n" ); document.write( "CASE 1 ...AS X TENDS TO + INFINITY Y TENDS TO -2
\n" ); document.write( "-2=B*A^(INFINITY)+C......HENCE |A| MUST BE <1 AND THEN A^(INFINITY)=0
\n" ); document.write( "-2=C.............................2
\n" ); document.write( "Y INTERCEPT IS 2..THAT IS AT X=0,Y=2
\n" ); document.write( "2=B*A^0+C=B+C.............3
\n" ); document.write( "2=B-2
\n" ); document.write( "B=4
\n" ); document.write( "FROM 1...
\n" ); document.write( "4=4A-2
\n" ); document.write( "A=6/4..............NOT POSSIBLE AS IT IS CONTRARY TO OUR BASIC REQUIREMENT IN CASE 1 THAT |A|<1.SO
\n" ); document.write( "CASE 2.....AS X TENDS TO - INFINTY, Y TENDS TO -2.
\n" ); document.write( "PROCEEDING AS ABOVE
\n" ); document.write( "-2=B*A^(-INFINITY)+C......
\n" ); document.write( "-2=C.............................2
\n" ); document.write( "Y INTERCEPT IS 2..THAT IS AT X=0,Y=2
\n" ); document.write( "2=B*A^0+C=B+C.............3
\n" ); document.write( "2=B-2
\n" ); document.write( "B=4
\n" ); document.write( "FROM 1...
\n" ); document.write( "4=4A-2
\n" ); document.write( "A=6/4 =1.5.......
\n" ); document.write( "HENCE EQN. IS
\n" ); document.write( "Y=4(1.5)^X-2
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