Answer:
Constant of proportionality is [tex]r = \frac{10}{3}[/tex]
Equation is [tex]c = \frac{10}{3}g[/tex]
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Explanation:
The general equation they give is c = rg
Solving for r leads to [tex]r = \frac{c}{g}[/tex]. We divided both sides by g to get this.
Now pick any point on the diagonal line. I'll pick (3,10)
The graph shows the horizontal axis is g and the vertical axis is c. The point (3,10) means g = 3 and c = 10 pair up together.
Making r to be,
[tex]r = \frac{c}{g} = \frac{10}{3}[/tex]
and the equation in the form c = rg would be
[tex]c = \frac{10}{3}g[/tex]
