For two points at (x1,y1) and (x2,y2), respectively, the rate of change is equal to the slope of the shortest possible line segment connecting the two points. This slope can be calculated by the following equation:
m = (y2-y1)/(x2-x1)
if a function is increasing, the average change of rate between any two points must be positive.
You measure the change in the vertical direction (rise) per unit change in the horizontal direction (run). The rate of change is constant between A and B if AB is a straight line. Take any two points, A = (xa, ya) and B = (xb, yb) then the average rate of change, between A and B = (yb- ya)/(xb- xa).
You divide the difference in y-coordinates by the difference in x-coordinates. Or whatever the variables are.
Because of the absence of any separators, it is not possible to tell whether the first point is (4, 36) or 43, 6). Consequently it is not possible to give a proper answer. Since these are both pure numbers, there would be no units to the rate of change.
Find the derivative
The constant rate of change between two points on a line is called slope.
To find the rate of change on a graph, you can identify two points on the curve and calculate the difference in the y-values (vertical change) divided by the difference in the x-values (horizontal change) between those points. This is often referred to as the slope of the line connecting the two points. For linear graphs, this slope remains constant, while for nonlinear graphs, the rate of change can vary at different intervals. You can also use calculus to find the instantaneous rate of change by determining the derivative of the function at a specific point.
if a function is increasing, the average change of rate between any two points must be positive.
No
To find the unit rate or constant of proportionality from a graph, identify two points on the line that represents the proportional relationship. Calculate the change in the y-values (output) and the change in the x-values (input) between these two points. The constant of proportionality is then found by dividing the change in y by the change in x, resulting in the slope of the line. This slope indicates the unit rate of the relationship.
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.
You measure the change in the vertical direction (rise) per unit change in the horizontal direction (run). The rate of change is constant between A and B if AB is a straight line. Take any two points, A = (xa, ya) and B = (xb, yb) then the average rate of change, between A and B = (yb- ya)/(xb- xa).
You can use any two points on a line to find its slope because the slope represents the rate of change between two points. By selecting two distinct points, you can measure the vertical change (rise) and the horizontal change (run) between them. The slope is calculated as the rise divided by the run, which remains constant for any two points on a straight line. This characteristic defines the linear relationship represented by the line.
That's called the line's slope.
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.
To find the rate of change using a graph, identify two points on the graph, typically labeled as (x1, y1) and (x2, y2). Calculate the change in the y-values (Δy = y2 - y1) and the change in the x-values (Δx = x2 - x1). The rate of change is then determined by dividing the change in y by the change in x (Rate of Change = Δy / Δx). This gives you the slope of the line connecting the two points, indicating how much y changes for a unit change in x.
You divide the difference in y-coordinates by the difference in x-coordinates. Or whatever the variables are.