can someone help me go through step by step with this one so i can do the rest of the problems by myself......... 2.Write the equation of the line which passes through (2, 1) and is perpendicular to x = –2. (1 point)

Question

can someone help me go through step by step with this one so i can do the rest of the problems by myself.........    2.Write the equation of the line which passes through (2, 1) and is perpendicular to x = –2. (1 point)

anonymous · Answer

first you need to know that
$$x=-2$$ is vertical, and therefore a perpendicular line will be horizontal

anonymous · Answer

then you need the fact that a horizontal line has the equation 
$$y=\text{number}$$

anonymous · Answer

so if it passes through (2,1) since the y value is 1, it must be the line 
$$y=1$$