Answer:
acceleration
Step-by-step explanation:
In a speed-time graph, the speed data is on the Y-axis and the time is represented on the X-axis.
A slope is the variation of Y-values over the variation of the X-values between to points.
So, the slope of a speed-time graph would be the variation of the speed over the variation of time.
Let's say your units are m/s for the speed and s for the time.
The slope units would then be calculated by dividing m/s by s... (m/s) / s....
That would give you m/s², which is an acceleration unit.
