Question

7. Which of the following equations represents a line parallel to y-axis?
(A) 2y = 5x
(B) 2y = 5
(C) 2x = 5
(D) 2x + 3y = 5
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Answer 1

Option c 2x=5 is the answer

Answer 2

Answer:

The line 2x = 5 represents a line parallel to y-axis

The correct answer is option (C) 2x = 5

Step-by-step explanation:

Required to find,

The equation of the line is parallel to the y-axis.

Recall the formula,

The equation of a line parallel to the y - axis is given by

x =  a constant

Solution:

From the given options

(A)  2y = 5x ⇒ $x = \frac{2}{5}y$, which is not the form x = a constant

(B)  2y = 5 ⇒ y = $\frac{5}{2}$, which is not the form  x = a constant

(C)  2x = 5 ⇒ $x = \frac{5}{2}$, which is of the form x =  a constant

(D) 2x + 3y = 5, which is not of the form x = a constant

Hence we can conclude that 2x = 5 represents a line parallel to y-axis

∴ The correct answer is option (C) 2x = 5

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