Y-intercepts and Zeros of Quadratics

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the y-intercept of the function f(x) = 2x² - 2x + 1?
Back
The y-intercept is the value of f(0), which is 1.
2.
FLASHCARD QUESTION
Front
What does the axis of symmetry of a quadratic function represent?
Back
The axis of symmetry is a vertical line that passes through the vertex of the parabola.
3.
FLASHCARD QUESTION
Front
What are the zeros of a quadratic function?
Back
The zeros (or roots) are the x-values where the function equals zero.
4.
FLASHCARD QUESTION
Front
What is another term for the zeros of a quadratic function?
Back
Roots.
5.
FLASHCARD QUESTION
Front
How do you find the y-intercept of a quadratic function?
Back
Substitute x = 0 into the function.
6.
FLASHCARD QUESTION
Front
What is the vertex of a quadratic function?
Back
The vertex is the highest or lowest point of the parabola.
7.
FLASHCARD QUESTION
Front
How can you determine the number of zeros a quadratic function has?
Back
By using the discriminant (b² - 4ac) from the quadratic formula.
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