ACT Preparation / Unit 12 ACT 1116 short lesson, about 20 seconds
The Logarithm Graph
Captions available
The idea
The graph of y = log_b x is the reflection of y = bˣ over the line y = x. It passes through (1, 0), has the vertical asymptote x = 0, and its domain is x > 0.
In practice
log₂ x passes through (1, 0), (2, 1) and (8, 3).
Where people slip
The domain and range swap with the exponential's.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Unlocks
- Nothing yet depends on this.
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