CPM Chapter 4 Review
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a system of inequalities?
Back
A system of inequalities is a set of two or more inequalities with the same variables. The solution is the set of all points that satisfy all inequalities in the system.
2.
FLASHCARD QUESTION
Front
How do you graph a system of inequalities?
Back
To graph a system of inequalities, first graph each inequality as if it were an equation. Then, shade the region that satisfies the inequality. The solution set is where the shaded regions overlap.
3.
FLASHCARD QUESTION
Front
What does the inequality y > 2x - 4 represent?
Back
It represents all the points above the line y = 2x - 4, not including the line itself.
4.
FLASHCARD QUESTION
Front
What does the inequality y < 2 represent?
Back
It represents all the points below the horizontal line y = 2, not including the line itself.
5.
FLASHCARD QUESTION
Front
How do you solve the inequality x^2 - 2x - 15 < 0?
Back
Factor the quadratic to (x - 5)(x + 3) < 0. The solution is the interval (-3, 5).
6.
FLASHCARD QUESTION
Front
What is the process to divide fractions?
Back
To divide fractions, multiply the first fraction by the reciprocal of the second fraction.
7.
FLASHCARD QUESTION
Front
What is the solution to the equation 2(y - 1)^2 + 8 = 80?
Back
The solutions are y = 7 and y = -5.
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