One <em><u>possible answer</u></em> is:
Parallel lines
Explanation:
Parallel lines are two or more lines in a plane that are the same distance apart and will never intersect. This definition uses two undefined terms, line and plane.
Answer: the answer is x=12 and x=4
√44=(√4)(√11)=2(√11)=2√11
the answer is Oy-2=3(x-5)