## Algebra and Trigonometry 10th Edition

$C$ represents line $m$ and $C^{-1}$ represents line $n$.
To identify $C(x)$ we consider $x=0$. The $y$-intercept is: $C(0)=7.50 (0) +1500=1500$ Thus, $C$ represents line $m$ and $C^{-1}$ represents line $n$.