Definitions
How do we write an equation with just the variables (letters) for a proportional relationship?
What is y=kx?
Describe the pattern you see in the rows of the table. What are you doing to get to the next number top and bottom.
Small Jars of Salsa 4 8 12
Ounces of Salsa 32 64 96
+4 sm jars of salsa
+32 oz of salsa
Does the table show a proportional relationship?
Carrots (lbs) 2 3 4
Number of Carrots 23 33 43
No.
9x=63
X=7
What is 16?
Which term is comparing two quantities or things?
What is Ratios?
What pattern do you see in the columns (look at the ratios)
Small Jars of Salsa 4 8 12
Ounces of Salsa 32 64 96
Each ratio divided equals 8.
Is this a proportional table?
Deli meats (lbs) 2 3 4
Total Cost ($) 23 34.50 46
Yes, k=11.50
Multiply these fractions: 3/4 x 3/5.
What is 9/20?
how long does it take to build a school? Days, weeks, or years.
What is years?
Which term means that there is a pattern with the ratios/tables?
What is Constant Ratio?
Finish the table:
Small Jars of Salsa 4 8 12 16
Ounces of Salsa 32 64 96 __
What is 128. +32 or make sure to use the equation y=8x.
There are 4 quarts in a gallon and 4 cups in a quart. How many cups are in one serving?
Milk (gallons) X 2 4 8
Servings Y 32 64 128
1 cup.
Multiply these fractions: 4/8 x 1/2.
What is 1/4
Which of the following is (are) equal to 1/2?
A. 6/12 B. 8/16 C. 10/30 D. 15/30
A 6/12 B 8/16 D 15/30
Which term means that K is constant?
What is Proportional Constant rate?
Is there a constant rate?
Number of tickets 6 8 10 14 25
Total Costs: 34.50 44 52.50 73.50 131.25
No constant rate
Describe the method for determining whether a table represents a proportional relationship.
Write and simplify the ratios. If they are equivalent, then they are proportional.
I have 7 red marbles, 4 green marbles, and 3 yellow marbles. What is the ratio of green:yellow.
What is 4:3?
How many sides does a pentagon have
5 sides
Which term includes simplifying the ratio and having only one of the item?
What is Unit Rate?
Is there a constant rate? What is it?
Time Distance
20 4
40 8
60 12
80 16
Yes the time increases by 20 and distance increases by 4.
Donya ran a 3k race at a constant speed of 21 minutes 30 seconds. At this speed, how long does it take her to run 1k?
What is 7 minutes.
I have 7 red marbles, 3 green marbles, and 4 red marbles. What is the ratio of green:all marbles.
What 3:14?
Order of Operations: 3 X 5 +2
What is 17.