Question

Is the line for the equation y = 1 horizontal or vertical? What is the slope of this line? Select the best answer.

The line is horizontal. The slope is 0.
The line is horizontal. The slope is 1.
The line is vertical. The slope is undefined.
The line is vertical. The slope is 0.

Answer 1

slope 0, equation y = 1

Explanation:

Think: every point on this line features 1 as the y value. Thus, the line must be horizontal, and its equation is y = 1. The slope is 0. (First answer choice)

Answer 2

Option a) The line is horizontal. The slope is 0.

Explanation:

Given is an equation of a line

`y=1`

Compare this with slope intercept form equation

`y=mx+b`

where m is slope and b is y intercept

The given equation is

`y=0(x)+1`

Hence slope =0 so the line is horizontal.

Out of the given four options

The line is horizontal. The slope is 0.