Find the slope of a line which makes an angle of
`45^@`with the negative direction of X-axis.

Explanation

To find the slope of a line that makes an angle of \(45^\circ\) with the negative direction of the X-axis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Angle with the Negative X-axis**:
The angle given is \(45^\circ\) with respect to the negative direction of the X-axis. This means the actual angle with the positive X-axis will be \(180^\circ - 45^\circ = 135^\circ\).

2. **Using the Slope Formula**:
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