Answer:
Step-by-step explanation:
The equation of a circle:
(h, k) - center
r - radius
We have the center (4, -3) and the point on the circle (9, -3).
The length of radius is equal to the distance between a center and an any point on a circle.
The formula of a distance between two points:
Susbtitute:
The center (3, 7) → h = 3, k = 7.
Finally we have:
Answer:
The vertices of the triangle A'B'C' are ,
and
, respectively.
Step-by-step explanation:
Vectorially speaking, the reflection of a point over the x-axis is defined by the following expression:
(1)
Where:
- Original point.
- Reflected point.
If we know that ,
and
, then the vertices of the triangle A'B'C':
,
,
The vertices of the triangle A'B'C' are ,
and
, respectively.