Answer:
slope is the ratio of the vertical and horizontal changes between two points on a surface or a line. The vertical change between two points is called the rise, and the horizontal change is called the run.
Step-by-step explanation:
To know the horizontal change between two points you need to know the two points.
Differentiate both sides of the equation of the circle with respect to 
, treating 
as a function of :
This gives the slope of any line tangent to the circle at the point 
.
Rewriting the given line in slope-intercept form tells us its slope is
In order for this line to be tangent to the circle, it must intersect the circle at the point such that
In the equation of the circle, we have
If 
, then 
, so we omit this case.
If 
, then 
, as expected. Therefore 
is a tangent line to the circle 
at the point (1, -2).
Elaborate please I can't answer this
The greatest common factor of 18 and 42 would be 2.
Answer:
A
Step-by-step explanation:
Process of elimination
