Radius of circle O has a slope of 2.5. What is the slope of the line tangent to circle O at point A?A. 0.8B. 2.5C. -0.4D. -5
Accepted Solution
A:
Answer:- 0.4Step-by-step explanation:The radius of a circle and a tangent to the circle are perpendicular to each other at the point of contact.Given a line with slope m then the slope of a line perpendicular to it is[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{2.5}[/tex] = - 0.4