Question

Q.8:- Graph of x = 5 is-
a) x-axis
d) a line parallel to y-axis
c) a line parallel to x-axis
b) a line parallel to y-axis
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Answer 1

graph of x = 5 is -

=> x - axis .

Answer 2

Answer:

ANSWER

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.