Answer: B-Their y-coordinates are the same.
Explanation:
From the given graph , it can be seen that the coordinates of P is given by :-
Abscissa of point P= -6→ which is the x coordinate .
Ordinate of point P = 4→ which is the y coordinate .
The coordinates of Q is given by :-
Abscissa of Q = 1 → which is the x coordinate .
Ordinate of Q = 4→ which is the y coordinate.
We can see that the y coordinates of both the points are same i.e. y=4.