Question

Write the equation of the line which is parallel to y axis and passes through the points (-1,2)

Answer 1

Answer:

Required equation is x = -1

Step-by-step explanation:

Since the line is parallel to y-axis,

its slope will be same as y-axis i.e. 1/0  

Also, it passes though the point (-1,2)

So according to the formula of line :

y' -y = m(x'-x)

where,

• (x',y') is the points through which the required line passes

• m is the slope of the line.

2 - y =  1/0  (-1 -x)

⇒ 0 = -1 - x

⇒ x = -1

∴ Required equation is x = -1

Answer 2

Answer:

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Step-by-step explanation: