College Algebra / Unit 8 Alg 427 short lesson, about 20 seconds
Logarithms and Exponentials Are Inverses
Captions available
The idea
Each logarithmic function is the inverse of its exponential: log_b undoes bˣ, their graphs reflect across y = x, and each one's domain is the other's range.
In practice
The point (3, 8) on 2ˣ trades seats to (8, 3) on log₂ — the coordinate swap of every inverse pair.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- Nothing. This is a starting point.
Unlocks
- Nothing yet depends on this.
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