Answer:
When we reflect a point across an axis, the distance between the point and the axis stays the same, but is flipped to the opposite side.
We know that the coordinates of point A are (4,1), the coordinates of point B are (6,3), and the coordinates of point C are (2,4).
In this case, Triangle ABC is a reflection of point A'B'C' across the y-axis.
Step-by-step explanation:
is this the question
d
Using the Cosine rule to find ∠ A
cosA =
=
= , then
∠ A = ( ) ≈ 84.9° ( to 1 dec. place )
y=(-2/5)x + 6
y-6= (-2/5)x or y=(-2/5)x + 6
If you simplify it you get d^2-4d
work is shown and pictured