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

please show work~!

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- θ βяιαη θLv 78 years ago
Notice that x = -2 is a vertical line since any coordinate on x = -2 must take the form:

(-2, c), for some c.

It should be apparent that all such points form a vertical line.

Any line perpendicular to a vertical line must be horizontal; thus, the required line is the horizontal line that passes through (2, 1), which is y = 1.

I hope this helps!

- 8 years ago
x=-2 is a vertical line, so the line perpendicular to x=-2 will be horizontal and ergo have a slope (m) of 0.

y=mx+b

1=0(2) + b

b=1

So the line will be y=1

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