Question

write the equations of the straight lines parallel to x axis and 1) at a distance of 3 units above the x axis and 2) at a distance of 4 units below the x axis

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Answer 1

Answer:

The equation of straight line is parallel to x-axis which means slope is 0

equation of straight line , y=mx+c

here, m=0

y=c

a) 2units above it means c=2

so equation of straight line is y=2

b) 3units below it means c=−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.