Find the equation of the line through $\left(2,7\right)$(2,7) that is parallel to the $y$y-axis.
Find the equation of the line through $\left(3,5\right)$(3,5) that is parallel to the $x$x-axis.
Which of the following formulae correctly describes the coordinates of the midpoint of the points $\left(x_1,y_1\right)$(x1,y1) and $\left(x_2,y_2\right)$(x2,y2)?
$M$M is the midpoint of Point $A$A $\left(5,2\right)$(5,2) and Point $B$B $\left(1,6\right)$(1,6).