Using logarithms, we can express \(y = k{x^n}\) in the form of the equation of a straight line \(y = mx + c\). Shown below is a straight line graph when \({\log _{10}}y\) is plotted against ...

a = x^2 + a\). Here we are adding \(a\) to the whole function. The addition of the value \(a\) represents a vertical translation in the graph. If \(a\) is positive, the graph translates upwards.