A linear relationship describes two variables that have an equal rate of change and can be represented by drawing straight lines when plotted on a graph.
Think of driving your car with cruise control set at 60 mph. As long as you maintain this speed, your distance from home will increase steadily over time - just like in a linear relationship.
Slope: Slope refers to how steep or flat a line is. It measures how much the y-value changes for every unit increase in x.
Direct Variation: A type of linear relationship where one variable is directly proportional to another, meaning their ratio remains constant.
Scatter Plot: A graph that displays individual data points as dots, showing the relationship between two variables and indicating if there is any correlation.
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