Question

. How full will the bucket be if he leaves for 2 hours?

Answer 1

`\begin{gathered} \text{let:} \\ x=\text{time in hours} \\ y=\text{bucket filled} \\ m=(y2-y1)/(x2-x1)=(1-0)/(1-0)=1 \\ y=mx \\ y=x \\ so \\ x=2 \\ y=2 \end{gathered}`