Question

Which of the following is NOT true about the given equation: x = 4

It is the equation of a horizontal line.

It's slope is undefined.

The point (4, 7) lies on the line.

It is perpendicular to y = 6.

Answer 1

A. It is the equation of a horizontal line.

Explanation:

The line, whose equation is x = 4 , is vertical on a certesian plane and not horizontal.

Its slope is udefined because any number devided by zero give undefined result.

The point (4, 7) lies on the line.

It is perpendicular to y = 6.

Attached graph:

The red line represents the line whose equation is x = 4

The blue line represents the line whose equation is y = 6