Activity on Quadratic Regression
Flashcard
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a quadratic function?
Back
A quadratic function is a polynomial function of degree 2, typically in the form of f(x) = ax² + bx + c, where a, b, and c are constants and a ≠ 0.
2.
FLASHCARD QUESTION
Front
What does the term 'curve of best fit' mean?
Back
The curve of best fit is a line or curve that best represents the data points in a scatter plot, often determined using regression analysis.
3.
FLASHCARD QUESTION
Front
How do you determine the vertex of a quadratic function?
Back
The vertex of a quadratic function in the form f(x) = ax² + bx + c can be found using the formula x = -b/(2a). The y-coordinate can be found by substituting this x value back into the function.
4.
FLASHCARD QUESTION
Front
What is the significance of the coefficient 'a' in a quadratic function?
Back
The coefficient 'a' determines the direction of the parabola: if a > 0, the parabola opens upwards; if a < 0, it opens downwards.
Tags
CCSS.HSF-IF.C.7A
5.
FLASHCARD QUESTION
Front
What is the standard form of a quadratic equation?
Back
The standard form of a quadratic equation is ax² + bx + c = 0, where a, b, and c are constants.
6.
FLASHCARD QUESTION
Front
What is the quadratic formula?
Back
The quadratic formula is used to find the roots of a quadratic equation and is given by x = (-b ± √(b² - 4ac)) / (2a).
Tags
CCSS.HSA-REI.B.4B
7.
FLASHCARD QUESTION
Front
What does the discriminant of a quadratic equation indicate?
Back
The discriminant, given by b² - 4ac, indicates the nature of the roots: if > 0, there are two real roots; if = 0, there is one real root; if < 0, there are no real roots.
Tags
CCSS.HSA-REI.B.4B
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