Proportional Relationships
Equations of Proportional Relationships
Identifying Proportional Relationships
Solve
100
What is the ordered pair of the origin?
(0,0)
100
What is the equation that represents a proportional relationship?
y=kx
100
Are these ratios proportional? 
Yes
100
What invention lets you look right through a wall?
A window
200
Find the number that makes the ratio equivalent to 1:6
8:____
48
200
Is this equation proportional? y= 3x
If so what is the constant of proportionality?
Yes
k=3
200
a) yes
200
Do these ratios form a proportion?
3 waffle cones to 10 sugar cones
6 waffle cones to 25 sugar cones
No
300
If a toy train travels 60 centimeters in 4 seconds, what is it's speed in centimeters per second?
15 centimeters per second
300
Is this equation proportional? If so what is the constant of proportionality?
y= 3/4x
proportional
k= 3/4
300
What word has 26 letters but only 3 syllables?
Alphabet
300
Solve
n=3.8
400
I have 3 squares, 2 circles, and 4 triangles. What is the ratio of squares to triangles?
3/4 or 3 to 4
400
Is this equation proportional? If so what is the constant of proportionality?
y= 4x + 10
Not proportional
400
Is the table proportional? Why?
Yes it is proportional, same constant k=9.
400
Given the table is proportional. Solve for K
K = 13
500
Recipe 1 is given by the equation y = 4x where x represents the cups of lemonade mix and y represents the cups of water.
If Tyler had 16 cups of lemonade mix, how many cups of water would he need?
64 cups of water
500
Write an equation for the table given the table is proportional.
Y= 3/2 x
500
Is the table proportional? Why?
No, not the same constant.
500
8.75 hours