Transcript Bell Ringer

Bell Ringer
I will not answer questions about the Bell Ringer
Express each ratio as a fraction in simplest form.
1.
56 pencils to 64 erasers
2.
26 tents to 65 campers
3.
45 out of 75 days
4.
112 out of 200 pages
Quiz Time
Clear your desk of everything but a pencil
and a calculator.
You CAN write on the quiz.
Section 6.4
Proportional and Nonproportional
Relationships
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2_18__6.4 Pro & Nonpro Relationships
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2_18__6.4 Pro & Nonpro Relationships
Let’s Review the Definitions

Proportional - Two quantities with a
constant ratio

Nonproportional- Two quantities
without a constant ratio
Example 1
Identify Proportional Relationships
Example 2
Identify Proportional Relationships
Example 3
Identify Proportional Relationships
Example 5 – Your Turn
Identify Proportional Relationships
Vocabulary

Constant of Proportionality – The k
(constant ratio) in the equation y = kx
◦ This is also called the unit rate
Example 7
Describe Proportional Relationships
Example 8
Describe Proportional Relationships
Example 9
Describe Proportional Relationships
Nina charges $34.50 for 6 days of pet sitting.
Write an equation relating the cost of pet sitting
to the number of days. What would be the cost
of pet sitting for 4 days?
Homework
Section 6.4 #1-2, 4-7, 10, 11
Homework
Section 6.4 #1-2, 4-7, 10, 11