Algebra Unit 10/11 Review
Flashcard
•
Mathematics
•
9th - 11th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What indicates that a parabola has a minimum?
Back
When 'a' is positive in the quadratic equation, the parabola opens upwards and has a minimum point.
2.
FLASHCARD QUESTION
Front
What is the vertex of the parabola represented by the equation y = x² + 16x + 71?
Back
V(-8, 7) is the vertex of the parabola.
3.
FLASHCARD QUESTION
Front
What is the equation for the axis of symmetry in a parabola?
Back
The axis of symmetry can be found using the formula x = -b/(2a). For the equation y = x² + 16x + 71, the axis of symmetry is x = -8.
4.
FLASHCARD QUESTION
Front
How do you use the quadratic formula to find solutions for a quadratic equation?
Back
The quadratic formula is x = (-b ± √(b² - 4ac)) / (2a).
5.
FLASHCARD QUESTION
Front
Solve for x using the quadratic formula: x² + 4x - 40 = -8.
Back
x = -8 & x = 4.
6.
FLASHCARD QUESTION
Front
What is the standard form of a quadratic equation?
Back
The standard form is y = ax² + bx + c, where a, b, and c are constants.
7.
FLASHCARD QUESTION
Front
What does the 'a' value in a quadratic equation determine?
Back
The 'a' value determines the direction of the parabola: if 'a' is positive, it opens upwards; if 'a' is negative, it opens downwards.
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