Linear Relationship
Definition
A linear relationship in chemistry refers to a situation where any change in one quantity results in a proportional change in another quantity. This is often represented graphically as a straight line.
Analogy
Think of it like walking your dog. If you walk at a constant speed, the distance you cover increases proportionally with time. The more time you spend walking, the further you go - this is a linear relationship.
Related terms
Proportional Relationship: This is when two quantities always have the same size in relation to each other. In our dog-walking analogy, if you double your walking speed, the distance covered also doubles.
Direct Variation: This describes a situation where an increase or decrease in one variable leads to a corresponding increase or decrease in another variable. Like if you walk faster (increase speed), you'll cover more distance (increase distance).
Slope-Intercept Form: It's an equation of a line that shows its slope and y-intercept. In our analogy, the slope could represent your walking speed and y-intercept could be your starting point.
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