The Accompanying Data on X = Current Density (MA/cm $2$ ) and Y = Rate of Deposition

Essay

The accompanying data on x = current density (mA/cm $2$ ) and y = rate of deposition $\text { ( } \mu \mathrm { m } / \mathrm { min } )$ appeared in a recent study. Do you agree with the claim by the article's author that "a linear relationship was obtained from the tin-lead rate of deposition as a function of current density"? Explain your reasoning. $$\begin{array} { c c c c c } \hline x & 20 & 40 & 60 & 80 \\\hline y & .24 & 1.20 & 1.71 & 2.22 \\\hline\end{array}$$