Transcript Lesson 1-3 - Elgin Local Schools

Lesson 1-3
Integers and Absolute Value
Definitions
• Negative Number- a number less than zero.
• Integers- a set of points that can be
represented on a number line.
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
Write an integer for each situation.
a) a 35¢ discount
b) a gain of $2.00 a share
c) 10 degrees below zero
Definitions
• Coordinate- the number that
corresponds to a point.
• Inequality- A sentence that compares
two different numbers or quantities.
Replace each ___ with <, >, or = to
make a true sentence.
a) -3 ___ 3
b) -2 ___ -1
c) -3 ___ 2
Absolute Value- is the distance a number
is from zero on the number line.
QuickTime™ and a
Sorenson Video 3 decompressor
are needed to see this picture.
Evaluate each expression.
a) 5
b) 14
c) 6   5
d) x  13 if x  4.
e) 4 a  b if a  5 and b  3.