graphing proportional relationships
equations of proportional relationships
identifying proportional relationships
Solve
100
what numbers are the orgin?
0,0
100
Is this equation proportional? y= 3x
If so what is the constant of proportionality? (K)
Yes
k=3
100
True or False?
When you figure the unit rate, you divide the “y” by the “x”
True
100
What is the Constant of Proportionality?
y/x
200
Using this graph, What is being compared? 
earth weight to moon weight
200
Is this equation proportional? If so what is the constant of proportionality? (K=)
y= 4x + 10
Not proportional
200
Is the graph a proportional relationship? Why?
NO
Does not go through the origin
200
(3,4)
(6,12)
Are the two points proportional?
NO
300
what are 2 ways to tell if a graph is proportional
if the line is straight
goes through the origin
300
Is this equation proportional? If so what is the constant of proportionality? (K=)
y= ¾ x
proportional
k= 3/4
300
(5,10) is a proportional relationship. What is the constant of proportionality?
2
300
Given the table is proportional. Solve for K
K = 13
400
Is this graph proportional?
YES
400
y=5x Write the equation for for x=?y
x=1/5y
400
Is the table proportional?
Yes it is proportional
400
It takes Bart 10 minutes to finish writing "I will not talk in school" 30 times. How long would it take him to "I will not talk in school" 90 times
.
30 minutes
500
What is the x coordinate when you graph the constant of proportionality?
1
500
What is being compared in the following problem?
If Mrs. Rice needs 25 feet of yarn to knot a scarf, how many yards would she need to knit 3 scarfs?
Feet of yarn to number of scarfs
500
a) yes
500
A recipe for chocolate chip muffins call for 4 cups of flour to 1 cup of chocolate chips. Which of the following shows a proportional ratio for the recipe?
a.8 cups of flour to 2 cups of chocolate chips
b. 3 cups of flour to 1 cup of chocolate chips,
c. 1 cup of flour for 1 cup of blueberries.
A,
100 extra points if you can tell the unit rate
600
Which of the following is proportional?
a. 
A
100 extra points if you can tell why
600
Using this graph, What is the equation?
y=20x
600
Is the table proportional?
No
600
How do you put the fraction 3/4 in the calculator?
3 numerator, then 4