D3 Quadratic Key Features Review

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Back

The y-intercept is the point where the graph intersects the y-axis. For the given equation, the y-intercept is (0, -9).

Front

What does the y-intercept represent in a quadratic function?

Back

The y-intercept represents the initial value of the function when x = 0.

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How do you find the y-intercept of a quadratic function?

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To find the y-intercept, substitute x = 0 into the function and solve for y.

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What is the domain of the function graphed in the context of a quadratic equation?

Back

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What is the vertex of a parabola?

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The vertex is the highest or lowest point of the parabola, depending on its orientation.

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How do you find the x-value of the vertex in a quadratic function?

Back

Front

What does the x-value of the vertex indicate in a real-world scenario?

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The x-value of the vertex indicates the time at which a maximum or minimum value occurs, such as the peak height of a ball.

Front

What is the significance of the y-value of the vertex in a quadratic function?

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The y-value of the vertex represents the maximum or minimum value of the function, depending on the orientation of the parabola.

Front

How do you determine the maximum height of a projectile modeled by a quadratic function?

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The maximum height can be found by evaluating the function at the x-value of the vertex.

Front

What is the general form of a quadratic function?

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