What is interval notation?
REVIEW - CONV, INT NOT, FACTORING, COMP THE SQ

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Mathematics
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A way of writing subsets of the real number line using intervals. For example, (a, b) represents all numbers between a and b, not including a and b.
2.
FLASHCARD QUESTION
Front
How do you express the interval -9 < x ≤ -4 in interval notation?
Back
(-9, -4]
3.
FLASHCARD QUESTION
Front
What is the purpose of completing the square in algebra?
Back
To transform a quadratic equation into a perfect square trinomial, making it easier to solve or analyze.
4.
FLASHCARD QUESTION
Front
What do you need to add to both sides to complete the square for the equation x^2 + bx?
Back
(b/2)^2.
5.
FLASHCARD QUESTION
Front
Factor the expression k^2 - 2k - 24 completely.
Back
(k + 4)(k - 6)
6.
FLASHCARD QUESTION
Front
What is the formula to convert feet per second to miles per hour?
Back
Multiply by (1 mi / 5280 ft) * (3600 sec / 1 hr).
7.
FLASHCARD QUESTION
Front
Convert 60 ft/s to mi/h.
Back
40.9 mi/h
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