Finding Unknowns of a Logarithmic Function

Finding Unknowns of a Logarithmic Function

IP 3

The curve of \(y=a{{\log }_{2}}\left( bx+1 \right)+4\) passes through \(\left( 1,6 \right)\) and \(\left( 3,8 \right)\). Find the values of \(a\) and \(b\).

Hence, sketch the graphs of \(y=a{{\log }_{2}}\left( bx+1 \right)+4\), labelling the coordinates of axial intercepts and equations of asymptotes.

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Answer:\(a=2\), \(b=1\)

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