Grade 10 Math: Quadratic Equations, Graphs, and More Intro to Quadratic Functions

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True or false? the following equation is a quadratic equation: $$y=9x^2-4$$

True
False
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True or false? A Quadratic relation is an equation in the following form: $$y=ax^2+bx+c$$ where \(a,b,c\) are real number

True
False
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True or false? A parabola is graphical representation of a quadratic relation.

True
False
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True or False? The vertex can be seen as the point where the graph changes direction

True
False
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