Topic : Number-Absolute Value
1.
2.
from: category_eng

1.Understanding
Definition : Absolute value means a distance.
|A| means the distance A from 0.

Ans: A

2.Mathematical Reading
Distance between 23 and 5y
Don't make a mistake this case.
y is not 4. should be 5.

Ans: E

1.

2.

3.
Use a number
4.

5.
Absoltue value is the expression for the distance
1. e
2. B
Mathematical Reading
(1) |x|=-x means x<0, Therefore, lots of |x| values are available.
(2) x=-2 or 2 so that |x|=2
3. c
Mathematical Reading
4. b
5. E
Absoltue value is the expression for the distance