What is the vertex of a quadratic graph?
Characteristics and Transformations of Quadratic Graphs

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Mathematics
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8th - 9th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The vertex is the highest or lowest point of the graph, depending on its orientation. It is represented as a coordinate point (h, k) in the vertex form of a quadratic function, f(x) = a(x-h)² + k.
2.
FLASHCARD QUESTION
Front
What does the axis of symmetry represent in a quadratic graph?
Back
The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves. It passes through the vertex and is given by the equation x = h, where (h, k) is the vertex.
3.
FLASHCARD QUESTION
Front
How does a vertical shift affect the graph of a quadratic function?
Back
A vertical shift moves the graph up or down. For example, f(x) = x² + k shifts the graph up by k units if k is positive and down by k units if k is negative.
4.
FLASHCARD QUESTION
Front
What is the effect of changing the coefficient 'a' in the quadratic function f(x) = ax²?
Back
Changing 'a' affects the width and direction of the parabola. If |a| > 1, the graph is narrower; if 0 < |a| < 1, the graph is wider. If 'a' is negative, the parabola opens downward.
5.
FLASHCARD QUESTION
Front
What is the parent function of a quadratic graph?
Back
The parent function of a quadratic graph is f(x) = x². It is the simplest form of a quadratic function and serves as the basis for transformations.
6.
FLASHCARD QUESTION
Front
Describe a horizontal shift in a quadratic function. For example, f(x) = (x - 3)².
Back
A horizontal shift moves the graph left or right. In f(x) = (x - 3)², the graph shifts 3 units to the right. If it were (x + 3)², it would shift 3 units to the left.
7.
FLASHCARD QUESTION
Front
What is the significance of the y-intercept in a quadratic graph?
Back
The y-intercept is the point where the graph crosses the y-axis. It can be found by evaluating f(0). For f(x) = ax² + bx + c, the y-intercept is (0, c).
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