Answer:
2
Step-by-step explanation:
2 km per trip x 2 trips = 4 km
Recall the inclusion/exclusion principle:

which means
Answer:
(-4, -3)
(-4,3)
(4,3)
The clock wise rotation of the coordinate will be
(3,4)
(3,-4)
(-3,-4)
(-3,4)
Well let's say you have a coordinate (2, -1)
Now if we reflect it upon the y-axis we'll end up at the coordinate (2,1)
We see that the x value is still the same.