Plotting Lines of the form x=±a; y=±b

Q. Find the equation of line $AB$.

1. $x=6$
2. $y=6$
3. $x=-6$
4. $y=-6$

Q. What does the set of points whose $y$-coordinate is $3$ represent?

1. Vertical line passes through $(3,0)$, i.e., $x=3$
2. Vertical line passes through $(-3,0)$, i.e., $x=-3$
3. Horizontal line passes through $(0,3)$, i.e., $y=3$
4. Horizontal line passes through $(0,-3)$, i.e., $y=-3$

Q. A friend of Steve who is a gardener is dealing with some issues about planting seeds. It turns out that she has a square garden and decided to plant seeds of beautiful flowering plants at these following particular locations. Now, she wants to plant a seed at $F$ which lies exactly between $C$ and $D$. What are the coordinates of $F$?

1. $(5,2)$
2. $(4,-2)$
3. $(5,4)$
4. $(5,-2)$

Q. Plot the line $y=-3$ on the cartesian plane.

1. 
2. 

Q. Plot the line $x=2$ on the cartesian plane.

1. 
2. 

Q. Find the equation of line $XY$.

1. $x=5$
2. $y=5$
3. $x=-5$
4. $y=-5$