Question

which of the following is a line parallel to x axis 1)x+3=0 2)2x+3=5 3) 2y-3=y+1 4)x+y=3​

Answer 1

Answer:

Step-by-step explanation:

Let the equation of the line be y=mx+c .....(1)  

Since it is parallel to the X-axis then m=0.  

∴ (1) becomes y=c .....(2) i.e the equation will have no x-term.

Let's check for the equations given

x+y=3 contains term of x. So, it can't be parallel to X-axis.

2x+3=7 contains x-term.

Thus, it is not parallel to X-axis.

2−y−3=y+1 ⟹y=1 which is in the form of (2) which does not contain x-term.

x+3 contains x-term. So, it is also not parallel to X-axis.

Thus, only the equation given by option C is parallel to X-axis.

Hence, option C is correct.