Question

which of the following equation represent a line parellel to x-axis
A. x=y
B. 2x+3=7
C. y=4
D. x=3
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Answer 1

Step-by-step explanation:

y=4

Because the slope is 0

Answer 2

2−y−3=y+1

Any straight line parallel to x−x−axis is given by y=k,y=k, where kk is the distance of the line from x−x−axis. 

In option C, we have 

2−y−3=y+1

⟹y=−1.