Question

1.9 worksheet Name: Veronica is fertilizing her backyard. The total weight of fertilizer varies rectly with the number of bags.

Answer 1

The rate of cahne of rate with respect to bags is.

$\begin{gathered} R=\frac{120-90}{4-3} \\ =\frac{30}{1} \\ =30 \end{gathered}$

Therfore, the rate is 30.

Since, the slope of the graph is positive. The variation is direct.