NC Math 1 EOC Review
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of equations?
Back
A set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.
2.
FLASHCARD QUESTION
Front
What does it mean if a system of equations has infinitely many solutions?
Back
It means that the equations represent the same line, and every point on that line is a solution.
3.
FLASHCARD QUESTION
Front
How do you determine if two lines are parallel?
Back
Two lines are parallel if they have the same slope but different y-intercepts.
4.
FLASHCARD QUESTION
Front
What is the quadratic formula?
Back
The quadratic formula is x = (-b ± √(b² - 4ac)) / (2a), used to find the solutions of a quadratic equation ax² + bx + c = 0.
5.
FLASHCARD QUESTION
Front
What is the significance of the discriminant in a quadratic equation?
Back
The discriminant (b² - 4ac) determines the nature of the roots: if positive, two real solutions; if zero, one real solution; if negative, no real solutions.
6.
FLASHCARD QUESTION
Front
What is linear regression?
Back
A statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation.
7.
FLASHCARD QUESTION
Front
How do you calculate the mean of a set of scores?
Back
Add all the scores together and divide by the number of scores.
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