Sign of delta vs sign of a function

Thème :Fonctions, Fonctions Polynomiales, Fonctions Quadratiques

This is a problem that we have faced concerning the sign of delta vs the sign of a function. How the sign of delta was always ___________ while the sign of the function _____.

Nouvelles ressources

挂谷问题——三尖瓣形
Isosceles Right Triangle
Linear Equation Graphs: Thin Slice
Odd Function Explorer
Quadrant Illustrator

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Sprreadsheet
Reflection and Translation Relationship
Are These Segments Congruent?
Avenues: The World School GeoGebra Book of Resources
#17 Style bar

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Loi Binomiale
Triangles Isocèles
Triangles Rectangles
Sinus
Trapézoïde