Answer :

All lines having equation of the type y=k are parallel to the x-axis .

What is Equation of Straight line ?

Equation of Straight line as follows : y = mx+b

where m is the slope of the line

c is the y intercept

Hence, this is the most common equation of a straight line used in the geometry .

The slope of the x-axis is 0 and the origin lies on the x-axis

Hence, The equation of the x-axis

could be,

y - 0 = 0 (x-0)

y = 0

As parallel lines have equal slope, all lines having the equation of the type y=k will have slope 0.

Hence, All lines having equation of the type y=k are parallel to the x-axis

To learn more about Straight line from the given link.

https://brainly.com/question/29223887

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