Its angle of incline.
the rate of change on the line.
The rate of change
That it descends.
If the line slants up and to the right, it has a positive slope. If it is slanting up and to the left, it has a negative slope.
velocity
The slope of the line on distance vs time is the same as the change of distance with respect to time...which is called "speed".
It is a horizontal line.
A slope is 0 if it is a straight horizontal line. A slope is undefined if it is a straight vertical line.
the rate of change on the line.
it is impossible to tell the slope of a line graph without proper points to evaluate from.
The rate of change
That it descends.
If the line slants up and to the right, it has a positive slope. If it is slanting up and to the left, it has a negative slope.
If you dont have slope then you cant tell
The slope will tell you how much change of Y to X >.
A vertical line is NO SLOPE to ski on. That's how my Algebra teacher taught us to remember it. Slope is rise/run with run=0, so the slope is infinity or "No Slope"
velocity