Exercise 1 Page 564

We are told that $△ACG$ and $△BCF$ are similar triangles. Let's start by graphing $△ACG$ with vertices $A(1,4),$ $C(3,\text{-}2),$ and $G(1,\text{-}2),$ and $△BCF$ with vertices $B(2,1),$ $C(3,\text{-}2),$ and $F(2,\text{-}2).$ We will now write a proportion relating the rise over run of these slope triangles.