Answer:
all 4 angles are congruent
Step-by-step explanation:
2 pairs of parallel sides.
4 right angles (90°).
Opposite sides are parallel and congruent.
All angles are congruent
Answer:
The equation of the new line is 
Step-by-step explanation:
Reflecting a function over the x-axis:
Suppose we have a function y = f(x)
Suppose y' is the function y, reflected over the x-axis. Their relation is:
y' = -y
In this question:
Line with equation 
Reflection over the x-axis:
We have that:

The equation of the new line is 
Answer:
15
Step-by-step explanation: