Question

Write the equation of the straight line parallel to x axis and at a distance of 3 units above x axis

Answer 1

Given: Distance is 3 units.

To find: The equation of the straight line

Solution:

• Now we have given that straight line should be parallel to x axis.

• So the equation will be: y = b

• Here b is distance.

• But the distance is given and the distance is 3 units above x axis.

• So the equation will be:

• y = 3

Solution:

             So the required equation is y = 3.

Answer 2

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Any straight line parallel to x−axis is given by y=k, where k is the distance of the line from x−axis. Here k=−3, because it is below x axis then the equation of the line is y=−3.