NC Math 1 EOC Review
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What does the equation V = 20x² - 363.2x + 2500 represent?
Back
The equation represents the value of a car from 1962 to 2000, where x = 0 corresponds to the year 1962.
2.
FLASHCARD QUESTION
Front
How do you find the year when the car had the least value using the equation V = 20x² - 363.2x + 2500?
Back
To find the minimum value, calculate the vertex of the parabola represented by the equation, which occurs at x = -b/(2a). In this case, it is x = 9.075, corresponding to the year 1971.
3.
FLASHCARD QUESTION
Front
What is the result of multiplying (4x + 1)(5x - 2)?
Back
The result is 20x² - 3x - 2.
4.
FLASHCARD QUESTION
Front
What is the standard form of a quadratic equation?
Back
The standard form is ax² + bx + c, where a, b, and c are constants.
5.
FLASHCARD QUESTION
Front
What is the maximum height of an object launched upward at 64 ft/s from a height of 80 feet?
Back
The maximum height is 144 feet, calculated using the vertex formula for the height equation s(t) = -16t² + 64t + 80.
6.
FLASHCARD QUESTION
Front
How do you solve the quadratic equation 2x² + 7x - 15 = 0?
Back
Use the quadratic formula x = (-b ± √(b² - 4ac)) / 2a. The solutions are x = -5 or x = 1.5.
7.
FLASHCARD QUESTION
Front
What is the formula for the total membership of a fitness club that starts with 80 members and increases by 15 members each month?
Back
The formula is y = 15x + 80, where y is the total membership and x is the number of months.
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