We define the rate of change between any two linear points as the slope, and designate it with the letter m. m = delta y over delta x.
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That is also known as the "slope". You can calculate it as (change in y-coordinates) divided by (change in x-coordinates).
The constant rate of change between two points on a line is called slope.
The tangent line is the instantaneous rate of change at a point on a curve. The secant line crosses a curve twice at points A and B, representing the average rate of change between those two points.
They are the same for a straight line but for any curve, the slope will change from point to point whereas the average rate of change (between two points) will remain the same.
it is the same as the slope, which can be found either graphically (rise over run) or algebraically using the formula (y2-y1)/(x2-x1)
the steepness of the line is the slope of the line which is the rate of change; the steeper the slope, the faster the rate of change