M3 U1Q1
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
+6
Standards-aligned
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a solution to a system of equations?
Back
A solution to a system of equations is a set of values for the variables that makes all the equations true simultaneously.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
FLASHCARD QUESTION
Front
What symbols indicate a closed dot when graphing inequalities?
Back
The symbols ≤ (less than or equal to) and ≥ (greater than or equal to) indicate a closed dot.
Tags
CCSS.6.EE.B.8
3.
FLASHCARD QUESTION
Front
What does the inequality |x + 4| < 5 represent?
Back
The inequality |x + 4| < 5 represents the range of values for x that are within 5 units of -4, which is -9 < x < 1.
4.
FLASHCARD QUESTION
Front
How do you solve the equation |2x + 9| = 15?
Back
To solve |2x + 9| = 15, set up two equations: 2x + 9 = 15 and 2x + 9 = -15. The solutions are x = 3 and x = -12.
5.
FLASHCARD QUESTION
Front
What is the formula to find the speed of a plane in still air given its speed with and against the wind?
Back
Let p be the speed of the plane in still air and w be the speed of the wind. The equations are: p + w = distance/time (with wind) and p - w = distance/time (against wind).
Tags
CCSS.8.EE.C.8C
6.
FLASHCARD QUESTION
Front
What is the definition of an inequality?
Back
An inequality is a mathematical statement that compares two expressions using symbols such as <, >, ≤, or ≥.
Tags
CCSS.6.EE.B.8
7.
FLASHCARD QUESTION
Front
What does it mean to graph an inequality?
Back
Graphing an inequality involves representing the solutions of the inequality on a number line or coordinate plane, using open or closed dots to indicate whether endpoints are included.
Tags
CCSS.6.EE.B.8
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