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The rate of change calculator is an easy-to-use, free online tool that provides the slopechange for two input coordinates. It makes it easy for you to figure out the rate at which one quantity varies in relation to another.
A rate of change measures how much one quantity (usually the dependent variable) changes in response to a change in another quantity (the independent variable). Mathematically, it is calculated by dividing the change in the dependent variable (Δy) by the change in the independent variable (Δx). The rate of change is positive if the dependent variable increases with an increase in the independent variable, and negative if it decreases. Graphically, the slope of a straight line is used to represent the rate of change, in a linear relationship, where the rate of change is constant.
In the real world, financial growth rates, velocity changes in physics, population growth, climate changes, revenue growth, drug proportions, and manufacturing production rates are the areas where rate of change plays a significant role. It is a powerful concept that bridges theoretical inputs with practical applications.
How to use the Rate of change Calculator?
Step 1 : Input the values
Enter the x and y values for the first coordinate in the first box. Enter the x and y values for the second coordinate in the second box.
Step 2 :Calculation part
Click “CALCULATE” and the slope (rate of change will be displayed). Explanation for the solution will be displayed by clicking on the “show solution”check box.
Step 3:Resetting the calculator
Once the solution is displayed, we can reset the calculation by clicking the “RESET” button so that the old calculations will be erased and computing errors will be avoided.
How to find the rate of change of the given function?
Slope is the ratio of vertical and horizontal change between two points on the plane or a line, then the slope equals the ratio of the rise and the run.
Slope: Rise over Run formula
-> change in the dependent variable
-> change in the independent variable
If a line has a positive slope (i.e., slope > 0), then y always increases when x increases and y always decreases when x decreases. Also, if a line has a negative slope (i.e., slope < 0), then y always increases when x decreases and y always decreases when x increases.
Example : Find the rate of change of two points A (2, 3) and B (5, 9).
So, the slope of the line passing through points A (2, 3) and B (5, 9) is 2.
Solved Examples :
Q1. Consider two points C (-2.5, 2) and D (1.2 , 3). Find the slope of the line connecting these points.
Solution:
Here x_1 = -2.5 y_1= 2, x_2= 1.2, and y_2= 3.
So, the slope of the line passing through points C (-2.5, 2) and D (1.2 , 3) is 0.2702.
Q2. Consider two points X (25, -2) and Y (-6, 4). Find the slope of the line connecting these points.
Solution:
So, the slope of the line passing through points X (25, -2) and Y (-6, 2) is 0.1935.
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