Question

Write the equation of the line which passes through (5, –2) and is parallel to x = 4

Answer 1

parallel to x=4 means that for all y values x is constant. In this case you have point x=5, y=-2.
The answer is that line parallel x=4 is x=5 (for all y)

Answer 2

Can you help me with this..step by step please

Write the equation of the line which passes through (2, 1) and is perpendicular to x = –2

Answer 3

To write perpendicular line for x=const, other line will be y=const.
x=-2, so for other line y=const for all x-es. and the point (2,1) says that y=1
so this line perpendicular x=-2 is y=1