Unit 1 Test Flashcards
1
Q
For |Ax+b|=|Cx+d|, how do you solve for x?
A
Ax+b = Cx+b or Ax+b = -Cx-b
2
Q
How to solve |ax+b|=k?
A
ax+b=k or ax+b=-k
3
Q
How to solve |ax+b|> k?
A
ax+b>k or ax+b<-k
4
Q
How to solve |ax+b|<k?
A
-k<ax+b<k
5
Q
Is “or” union or intersection?
A
Union
6
Q
Is “and” union or intersection?
A
Intersection
7
Q
Intersection
A
The elements that are included in both A and B
8
Q
Union
A
The elements that belong in A, B, and both
9
Q
Natural numbers
A
Positive whole numbers (does not include 0)
10
Q
Whole numbers
A
Positive numbers and 0 (are also called counting numbers and natural numbers except for 0)
11
Q
Real numbers
A
Rational and irrational numbers (does not include numbers involving i)
