Question

What is the equation of the line shown written in slope-intercept form?

y = -2
y = 2
x = 2

Answer 1

it would be Y=2 as it's a horizontal line at y=2

Answer 2

The equation of the line is y = 2.

Explanation:

When a line is horizontal, it's gradient will be 0. So you have to substitute the coordinates into the equation, y = mx + b, to find the b :

`y = mx + b`

`let \: m = 0 \\ let \: x = 5 \\ let \: y = 2`

`2 = 0(5) + b`

`b = 2`

`y = 2`