1

$\begin{array}{cc}y& =2x-2\\ y& =3x+3\end{array}$

(9 , 30)

(1 , 4)

(1 , 5)

(-5 , -12)

✗✓

2

$\begin{array}{cc}y& =3x+2\\ y& =6x-1\end{array}$

(9 , 30)

(1 , 4)

(1 , 5)

(-5 , -12)

✗✓

3

$\begin{array}{cc}y& =4x-6\\ y& =5x-15\end{array}$

(9 , 30)

(1 , 4)

(1 , 5)

(-5 , -12)

✗✓

4

$\begin{array}{cc}y& =2x+12\\ y& =3x+3\end{array}$

(9 , 30)

(1 , 4)

(1 , 5)

(-5 , -12)

✗✓

5

$\begin{array}{cc}y& =4x+8\\ y& =2x-2\end{array}$

(9 , 30)

(1 , 4)

(1 , 5)

(-5 , -12)

✗✓

6

$\begin{array}{cc}y& =-2x+6\\ y& =5x-1\end{array}$

(9 , 30)

(1 , 4)

(1 , 5)

(-5 , -12)

✗✓