17 lines
564 B
Markdown
17 lines
564 B
Markdown
A derivative can be used to describe the rate of change at a single point, or the *instantaneous velocity*.
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The formula used to calculate the average rate of change looks like this:
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$$ \dfrac{f(b) - f(a)}{b - a} $$
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Interpreting it, this can be described as the change in $y$ over the change in $x$.
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- Speed is always positive
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- Velocity is directional
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As the distance between the two points
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# Line Types
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## Secant Line
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A **Secant Line** connects two points on a graph.
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A **Tangent Line** represents the rate of change or slope at a single point on the graph. |