What does the line on a speed-time graph look like for an object with positive acceleration? 1. It slopes up.2. It slopes down.3. It is flat 4.It is vertical

The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. ... If the acceleration is positive, then the slope is positive (i.e., an upward sloping line). If the acceleration is negative, then the slope is negative (i.e., a downward sloping line).

Please mark brainliest as im on the way to leveling up ;p

it teaches readers about an interesting chinese custom and causes them to determine that the minister is trying to be polite