Answer:
Step-by-step explanation:
Given circle has equation as

Center = P(0,0)
The point of contact of tangent =
Q
Since tangent is perpendicular to the radius at the point of contact, we have
Slope =
as slope of perpendicular to tangent
So tangent slope would be
-1/slope of this line
= 
We have point on this line as given point
So using point slope form equation of tangent is

Answer:
-1.25
Step-by-step explanation:
(3,8) (7,3)
(8-3)/(3-7)= 5/-4= -1.23
FYI: watch some videos on Khan academy on finding slope
Answer:

Step-by-step explanation:
The point slope form of a line is
where
. We write
Convert point slope form to slope intercept form by simplifying and rearranging.
