Question

P is the point $(-5,3)$ and Q is the point $(-5,m)$. If the length of the straight line PQ is 8 units, the the possible value of "m" is:

• A. $-5$ and 5
• B. $-5$ or 11
• C. $-5$ or $-11$
• D. 5 or 11

Answer 1

The correct option is B $-5$ or 11

Since x-component of P and Q are same i.e., -5
y-component of Q should be 8 units above or below.
i.e., 11 or $-5$