Equation of a straight line parallel to y axis — lesson. Mathematics State Board, Class 10.

PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo

Consider drawing a line parallel to

$y$ - axis, which is at a distance of

$b$ units. Then, the

$x$ coordinate of every point on the straight line will be "

$b$ ".

Hence, the general equation of the line parallel to

$y$ - axis is

$x = b$ .

Example:

Consider plotting the points

$(2,-3,)$ ,

$(2,-2)$ ,

$(2,-1)$ ,

$(2,0,)$ ,

$(2,1)$ ,

$(2,2)$ ,

$(2,3)$ .

Now, draw a line joining these points. The line is at a distance of

$2$ units from the

$y$ - axis. Here,

$b = 2$ .

Therefore, the equation of the line parallel to

$y$ - axis is

$y = 2$ .

Important!

1. If

$b > 0$ , then the line

$x = b$ lies on the right side of the

$y$ - axis.

2. If

$b < 0$ , then the line

$x = b$ lies on the left side of the

$y$ - axis.

3. If

$b = 0$ , then the line

$x = b$ lies on the

$y$ - axis.

Did you find an error?

3. Equation of a straight line parallel to y axis