College Algebra / Unit 6 Alg 301 short lesson, about 20 seconds
Linear Functions
Captions available
The idea
A linear function is a function whose graph is a line, written f(x) = mx + b with slope m and initial value b.
In practice
f(x) = 3x − 6 climbs at 3 per step from a start of −6 — the whole behavior in two numbers.
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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