Answer:
see explanation
Step-by-step explanation:
(a)
A horizontal line parallel to the x- axis has equation
y = c
where c is the value of the y- coordinates the line passes through.
The line passes through (- 2, 4) with y- coordinate 4, thus
y = 4 ← equation of horizontal line
(b)
A vertical line parallel to the y- axis has equation
x = c
where c is the value of the x- coordinates the line passes through.
The line passes through (- 2, 4) with x- coordinate - 2, thus
x = - 2 ← equation of vertical line
