The commutative property of addition means we can add two integers in any order. So yes, It would still apply to two negative integers (for example, -2 + -3 and -3 + -2 both equal five)
It is the 3rd answer, y+6= 13(x+2) since the the point slope formula is
y-y1 = m(x-x1)
you plug the y-value of the coordinate point into y1 and you plug the x-value of the coordinate into x1. You plug the slope into m.
Translated down is changing y coordinate
(-2,4)
4-6 = -2
Coordinates of A’ is (-2,-2)
(-4,-7)
reflect over the y-axis
(x,y) -> (-x,y)
(-4,-7) -> (4,-7)
Coordinates of B’ is (4,-7)
Hope this helps!
You are gonna use a^2 + b^2 = c^2 because the cities make a right triangle and you are trying to find the hypotenuse (c). C^2 ends up being 517 and the square root, your answer, is 22.7 miles