Answer:
[tex]-3[/tex]
Explanation:
Here, we want to get the value of the slope of the line that is perpendicular to the given line
The first condition to understand is that the second line is perpendicular to the first
When two lines are perpendicular, the product of their slopes is equal to -1
Mathematically, let us call the slope of the second line m2
Thus:
[tex]\begin{gathered} \frac{1}{3}\times\text{ m}_2\text{ = -1} \\ \\ m_2\text{ = -1 }\times\text{ 3} \\ m_2\text{ = -3} \end{gathered}[/tex]
