Solve the System by the Substitution Method $$\begin{array} { l } y = 9 x ^ { 2 } - 18 x \\y = 9 x\end{array}$$

Multiple Choice

Solve the system by the substitution method.
- $$\begin{array} { l } y = 9 x ^ { 2 } - 18 x \\y = 9 x\end{array}$$

A) $\{ ( 0,0 ) \}$
B) $\{ ( 0,0 ) , ( 3,27 ) \}$
C) { }
D) $\{ ( 3,27 ) \}$