Vertex form

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the vertex form of a quadratic equation?
Back
2.
FLASHCARD QUESTION
Front
Back
The vertex is (h, k) = (4, 1).
3.
FLASHCARD QUESTION
Front
Back
The axis of symmetry is x = h = 3.
4.
FLASHCARD QUESTION
Front
Back
a = 2, h = -4, k = -1.
5.
FLASHCARD QUESTION
Front
What does the value of 'a' indicate in the vertex form of a quadratic equation?
Back
The value of 'a' indicates the direction of the parabola (upward if a > 0, downward if a < 0) and its width (narrower if |a| > 1, wider if |a| < 1).
6.
FLASHCARD QUESTION
Front
Back
The equation has a maximum value.
7.
FLASHCARD QUESTION
Front
What does it mean if a parabola is described as 'wider'?
Back
A parabola is described as 'wider' when the absolute value of 'a' in the vertex form is less than 1 (|a| < 1).
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