Final answer:
Parallel lines have the same slopes.
Step-by-step explanation:
The subject of this question is Mathematics as it involves calculating slopes using a formula.
Slope is calculated using the formula m = (v2 - v1) / (x2 - x1). When two lines are parallel, their slopes are equivalent, meaning that they have the same slope. This is because parallel lines have the same steepness or inclination.
For example, if Line A has a slope of 2 and Line B is parallel to Line A, then Line B will also have a slope of 2.
Learn more about Slope of parallel lines