Answer:
2
Explanation:
since the y- coordinates are equal, both - 2
then the distance between the points is the absolute value of the difference of the x- coordinates, that is
d = | - 1 - (- 3) | = | - 1 + 3 | = | 2 | = 2
or
d = | - 3 - (- 1) | = | - 3 + 1 | = | - 2 | = 2