Maths-

General

Easy

Question

# Identify a line with an undefined slope .Application

a. y = x

b. y+ x =0

c. y = 10

d. x = 1

Hint:

### Verticle lines / lines parallel to y-axis have undefined slope.

## The correct answer is: ∴ Option d i.e. x = 1 is the correct option.

### Step-by-step solution:-

We know that when a line, plotted on a graph is represented by a verticle line, its slope is undefined.

i.e. slopes of lines that are parallel to y-axis are undefined.

Equations of lines that are parallel to y-axis are in the form x = a where a is the value of x-intercept.

From the given options, option d is the only option with equation of line in this format i.e. x = a i.e. x = 1.

∴ option d is the correct option.

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