Interpreting Graphs
Is it Proportional?
Graph and Table Edition
Graph and Table Edition
Is it Proportional? Equation Edition
Unit Rate or Constant of Proportionality
Riddles
100
In the point (5, 225) what does the 5 mean?
5 hours.
100
Is this graph proportional?
yes
100
Is this equation proportional?
y=-9x
If so, what is k?
Yes! k=-9
100
What is the unit rate/constant of proportionality?
$1.25 per lb of bananas.
100
What has to be broken before you can use it?
An egg
200
In the point (30,45) what does the 45 mean?
$45.
200
Is this graph proportional? Explain.
No, because it does not go through the origin.
200
Is this equation proportional?
y=4+3x
If so, what is k?
No
200
What is the constant of proportionality?
$3 per lb.
200
There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What color are the stairs?
There aren't any- it's a one story house
300
What is his savings in one month (unit rate)?
The unit rate is $15 a month.
300
Is this a table of a proportional relationship? 
Yes.
300
Is this equation proportional?
y=1/2x
If so, what is k?
Yes. k=1/2
300
Find the unit rate/constant of proportionality
16 pieces of candy per box.
300
The more of this there is, the less you see. What is it?
Darkness
400
What is the constant of proportionality?
16 cookies per cup of flour
400
Is this a table of a proportional relationship?
No.
400
Is this equation proportional?
y = 8x + 2
If so, what is k?
No
400
Find the unit rate/constant of proportionality
1.2 miles per hour.
400
What is always in front of you but can’t be seen?
The future
500
In the point (10,5) what does 10 mean?
10 jam jars
500
Is this a table of a proportional relationship?
No.
500
Is this equation proportional?
y=18x
If so, what is k?
Yes. k=18
500
Find the unit rate of cups of broccoli per lbs of beef.
1.5 cups of broccoli per lbs of beef.
500
I’m light as a feather, yet the strongest person can’t hold me for long. What am I?
Your breath