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How can the built-in Desmos graphing calculator be used to instantly solve a system of linear or non-linear equations?

Study flashcard from the deck Digital SAT Math: Algebra, Advanced Math & Geometry.

Answer

Enter both equations exactly as written (e.g., $y = 3x - 5$ and $x^2 + y^2 = 25$) on separate lines; the coordinates $(x, y)$ of their intersection points are displayed as clickable gray dots.

Explanation

Desmos handles equations without needing to isolate $y$, eliminating algebraic manipulation errors under time pressure.

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