# Math Help - equation of lines of best fit problem

1. ## equation of lines of best fit problem

The variable $x$ and $y$ are related by the equation $y = kH^x$, where $k$ and $H$ are constant.Diagram shows the straight line graph obtained by plotting $log_4{y}$ against $x$

a)express the equation in its linear form used to obtained the straight line graph shown in diagram.

2. Well, what's your difficulty? We have that $\log_4(kH^0)=2$ and $\log_4(kH^8)=6$. From here one can find k and H.

Actually, it seems that the answer to a) is the equation $\log_4y=(6-2)x/8+2$.