The slope of the line on a position vs. time graph reveals information about an object's velocity. The magnitude (numerical value) of the slope is equal to the object's speed and the direction of the slope (upward/+ or downward/-) is the same as the direction of the velocity vector. Apply this understanding to answer the following questions.
a. A horizontal line means
b. A straight diagonal line means
c. A curved line means
d. A gradually sloped line means
e. A steeply sloped line means​