you need 2 points on the line
y2-y1
slope=-----
x2-x1
The slope for a straight line graph is the ratio of the amount by which the graph goes up (the rise) for every unit that it goes to the right (the run). If the graph goes down, the slope is negative. For a curved graph, the gradient at any point is the slope of the tangent to the graph at that point.
The slope of a velocity-time graph represents acceleration.
acceleration
the slope at any point on the graph is the acceleration
"Slope" is the steepness of the line on any graph.
The slope of a velocity-time graph represents acceleration.
The slope of a velocity-time graph represents acceleration.
The slope of a distance-time graph represents speed.
the slope.
it is impossible to tell the slope of a line graph without proper points to evaluate from.
That slope is the 'speed' of the motion. If the slope is changing, then the speed is changing. That's 'accelerated' motion. (It doesn't matter whether the speed is growing or shrinking. It's still 'accelerated' motion. 'Acceleration' does NOT mean 'speeding up'.)
The slope of each point on the line on the graph is the rate of change at that point. If the graph is a straight line, then its slope is constant. If the graph is a curved line, then its slope changes.