linear relationship
A relationship that has a straight line graph
A linear relationship is a type of relationship between two variables where the change in the value of one variable is directly proportional to the change in the value of the other variable. In a linear relationship, the graph of the relationship is a straight line.
The equation of a linear relationship is written in the form of y = mx + b, where y is the dependent variable, x is the independent variable, m is the slope of the line and b is the y-intercept. The slope of the line describes how steep the line is, while the y-intercept is the point where the line crosses the y-axis.
For example, if we are studying the relationship between the number of hours studied and the grade achieved on a test, we can assume that there is a linear relationship. In this case, the number of hours studied is the independent variable and the grade achieved is the dependent variable. By plotting the data on a graph and calculating the slope and y-intercept, we can visualize and quantify the relationship between the two variables.
In summary, a linear relationship is a mathematical way to describe a straight-line relationship between two variables, where the change in one variable is directly proportional to the change in the other variable.
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