# Line Segment

Given a list of `[x, y]`

coordinates in a Cartesian plane, return whether the coordinates form a straight line segment.

**Constraints**

`n ≤ 100,000`

where`n`

is the length of`coordinates`

.

https://binarysearch.com/problems/Line-Segment

## Examples

### Example 1

**Input**

- coordinates =

```
[[1,1],
[3,3],
[7,7]]
```

**Output**

- answer =
`True`

**Explanation**

This forms a line segment with a slope 1

### Example 2

**Input**

- coordinates =

```
[[1,1],
[3,3],
[4,6]]
```

**Output**

- answer =
`False`

**Explanation**

The `3`

points don’t form a line segment, since the slope between `[1, 1]`

and `[3, 3]`

is `1`

but the slope between `[3, 3]`

and `[4, 6]`

is `3`

.

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