INSTRUCTIONS:
1 . Enter line in general form: $\left( Ax + By + C = 0 \right)$ and a point.
2 . You can input integers (10), decimals (10.2), fractions (10/3) and Square Roots - (use letter 'r' as a square root symbol).
Example: $ \text{ 2r3 } = 2 \cdot \sqrt{3}$
3 . The examples of valid lines are $3x + 5y = 1$ , $\frac{1}{3}x - y = 4.2$ and $ y = \sqrt{3}x + \frac{1}{2}$