What is the vertex form of a quadratic equation?
Algebra 1 STAAR Review - Category 4

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Mathematics
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9th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The vertex form of a quadratic equation is y = a(x - h)² + k, where (h, k) is the vertex of the parabola.
2.
FLASHCARD QUESTION
Front
What does the coefficient 'a' in the quadratic equation y = ax² + bx + c represent?
Back
The coefficient 'a' determines the direction and width of the parabola. If 'a' is positive, the parabola opens upwards; if negative, it opens downwards.
3.
FLASHCARD QUESTION
Front
What is the axis of symmetry in a quadratic function?
Back
The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves. It can be found using the formula x = -b/(2a).
4.
FLASHCARD QUESTION
Front
How do you find the minimum or maximum value of a quadratic function?
Back
The minimum or maximum value occurs at the vertex of the parabola, which can be found using the vertex form or by calculating the vertex coordinates.
5.
FLASHCARD QUESTION
Front
What is the standard form of a quadratic equation?
Back
The standard form of a quadratic equation is y = ax² + bx + c, where a, b, and c are constants.
6.
FLASHCARD QUESTION
Front
What is the difference between the domain and range of a function?
Back
The domain is the set of all possible input values (x-values), while the range is the set of all possible output values (y-values).
7.
FLASHCARD QUESTION
Front
What does it mean for a function to be quadratic?
Back
A function is quadratic if it can be expressed in the form y = ax² + bx + c, where a ≠ 0.
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