Stage 23 · Quadratic Functions

23.4.2 Three Points? Use the General Form

23.4 Three Forms and How to Find Them

Point 2 of 5

23.4.2 Three Points? Use the General Form

Core idea

If the curve passes through three points, plug in all three coordinate pairs to set up a system and solve for a, b, and c.

Module goal. Master the general, vertex, and factored forms, and find the equation from given conditions by solving for the unknown coefficients.
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