Answer:
Red line slope = - [tex]\frac{5}{2}[/tex]
Step-by-step explanation:
We know
- The lines are perpendicular.
- The green line has a slope of [tex]\frac{2}{5}[/tex].
What is the slope of the red line?
If the green line is perpendicular to the red line, then their slopes are negative reciprocals of each other.
Red line slope = - [tex]\frac{5}{2}[/tex]