A2 Fall Final Exam CUHS 24/25
Flashcard
•
Mathematics
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the discriminant of a quadratic equation and what does it indicate about the roots?
Back
The discriminant is given by the formula D = b^2 - 4ac. It indicates the nature of the roots: if D > 0, there are two distinct real roots; if D = 0, there is one real root (a repeated root); if D < 0, there are two complex roots.
2.
FLASHCARD QUESTION
Front
How do you write a prediction equation from ordered pairs?
Back
To write a prediction equation from ordered pairs, identify the slope (m) and y-intercept (b) using the formula y = mx + b, where m is calculated as (y2 - y1)/(x2 - x1) from two points (x1, y1) and (x2, y2).
3.
FLASHCARD QUESTION
Front
What is a piecewise-defined function?
Back
A piecewise-defined function is a function that is defined by different expressions or formulas for different intervals of the input variable.
4.
FLASHCARD QUESTION
Front
How do you write a quadratic equation given its roots?
Back
5.
FLASHCARD QUESTION
Front
What is the standard form of a quadratic equation?
Back
6.
FLASHCARD QUESTION
Front
How do you solve a quadratic equation using the quadratic formula?
Back
7.
FLASHCARD QUESTION
Front
What does it mean for roots to be real and irrational?
Back
Real and irrational roots are roots that can be expressed as non-repeating, non-terminating decimals, and they do not intersect the x-axis at rational points.
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