College Algebra / Unit 3 Alg 124 short lesson, about 20 seconds
Intercepts
Captions available
The idea
An x-intercept is where a graph crosses the x-axis, found by setting y to zero; a y-intercept mirrors it with x.
In practice
For 2x + 3y = 6: y = 0 gives (3, 0); x = 0 gives (0, 2).
Where people slip
An intercept is a point, not a bare number.
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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