the graph shows the relationship between pounds of grapes, g, and their cost, c. use the graph to complete…

Explanation:

Step1: Find the unit - rate of pounds per dollar

From the graph, when $c = 2$, $g = 1$; when $c = 4$, $g = 2$; when $c = 6$, $g = 3$. The rate of pounds of grapes $g$ to cost $c$ is $\frac{g}{c}$. To find the number of pounds of grapes per dollar, we calculate the slope of the line. Using two points $(2,1)$ and $(4,2)$, the slope $m=\frac{2 - 1}{4 - 2}=\frac{1}{2}=0.5$. So for every dollar you spend, you can get $0.5$ pounds of grapes.

Step2: Find the cost per pound

The cost per pound is the reciprocal of the pounds per dollar. Since the pounds per dollar is $0.5=\frac{1}{2}$, the cost per pound is $\frac{1}{\frac{1}{2}} = 2$. So for each pound of grapes, you would need $$2$.

Answer:

For every dollar you spend, you can get $0.5$ pounds of grapes. For each pound of grapes, you would need $$2$.