Question

Which of the equations below represents a line perpendicular to the x-axis?

А. = — бу
В. X= 6
C. X= у
D. X= бу
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Answer 1

B.
`x = 6`

Explanation:

The x-axis is the line of
`0 = y` [horizontal line], therefore the ONLY live perpendicular to that would be
`x = 6`, which is a vertical line, giving you a right angle in the centre.

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Answer 2

Option B

Explanation:

we know that

A line perpendicular to the x-axis is a line parallel to the y-axis

so

the equation of the line is of the form x=(+/-)a

The slope of the line is undefined

where

a is a real number

therefore

x=6 is a line perpendicular to the x-axis