ACT Preparation / Unit 9 ACT 0824 short lesson, about 20 seconds
What a System's Solution Is
Captions available
The idea
A solution of a system of equations is an ordered pair that satisfies every equation at once. On a graph, it is the point where the lines intersect.
In practice
(2, 3) solves x + y = 5 and 2x − y = 1, because both equations hold there.
Where people slip
A point on only one line is not a solution.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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