Consider the line parametrized by $r(t)=($:$3,-1,9$:$)+t($:$8,12,-6$:$).$

Identify the parametrizations equivalent to $r(t).$

$r_1(t)=($:$11,11,3$:$)+t($:$8,12,-6$:$)$

$r_2(t)=($:$4,0,10$:$)+t($:$8,12,-6$:$)$

$r_3(t)=($:$6,-2,18$:$)+t($:$8,12,-6$:$)$

$r_4(t)=($:$3,-1,9$:$)+t($:$-4,-6,3$:$)$

$r_5(t)=($:$8,12,-6$:$)+t($:$3,-1,9$:$)$

$r_6(t)=($:$-1,-7,12$:$)+t($:$4,6,-3$:$)$

Incorrect Answer