Alg 2 Test 2 Practice
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the vertex of the parabola represented by the equation y=5(x-2)²–7?
Back
(2, -7)
2.
FLASHCARD QUESTION
Front
How do you find the value of a function at a specific point, such as f(5)?
Back
Substitute the value of x into the function and simplify.
3.
FLASHCARD QUESTION
Front
What is the value of f(-2) if f(x) = 5(x-2)²–7?
Back
1
4.
FLASHCARD QUESTION
Front
What is the definition of a function?
Back
Every input has only ONE output.
5.
FLASHCARD QUESTION
Front
How can you determine if a graph represents a function?
Back
Use the vertical line test; if a vertical line intersects the graph at more than one point, it is not a function.
6.
FLASHCARD QUESTION
Front
What is the standard form of a quadratic function?
Back
y = ax² + bx + c.
7.
FLASHCARD QUESTION
Front
What does the 'a' value in the quadratic function y = ax² + bx + c indicate?
Back
It indicates the direction of the parabola (upward if a > 0, downward if a < 0) and the width of the parabola.
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