AP Precalculusmediummcq1 pt
The discriminant of ax² + bx + c tells
A.the number of real zeros
B.the vertex's y-value
C.the axis of symmetry only
D.the y-intercept
Explanation
Core Concept
b² − 4ac: positive = two, zero = one, negative = none.
Correct Answer
Athe number of real zeros
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