Proportional or Not?
From Tables
From Equations
From Graphs
Word Problems
100
Does the table represent a proportional relationship or not? Be able to explain your answer.
Not Proportional, when dividing y/x they do not all equal the same constant of proportionality.
100
What is the constant of proportionality?
45
100
What is the constant of proportionality?
y=0.6x
0.6
100
The ordered pair on a graph of a proportional relationship is (5, 15). What is the constant of proportionality?
3
100
Peter sells shoes. On Monday he sold 15 shoes in 5 hours. On Tuesday he sold 18 shoes in 6 hours. How many shoes does Peter sell in an hour?
3 shoes per hour
200
Does the table represent a proportional relationship? Be able to explain your answer.
Yes, all equal the same constant of proportionality.
200
Write an equation that shows the proportional relationship.
y =12x
200
Given the equation y=-4x what is y when x= 7?
y=-28
200
What is the constant of proportionality?
5
200
David is making his own strawberry yogurt. He uses 4 cups of milk for every 14 strawberries. Write an equation that represents the situation.
y=3.5x
300
Does the graph represent a proportional relationship? Be able to explain your answer.
Yes, it goes through the origin and is a linear line.
300
How much would it cost for 12 adults to go to the amusement park?
$900
300
Bananas are $0.59 per pound. How much would 25 bananas cost?
$14.75
300
Write and equation that represents the relationship.
y=5x
300
The graph above represents how many laps Luke can run in minutes. What does the ordered pair (0,0) represent in the situation?
Luke can run 0 laps in 0 minutes.
400
Which equations represent a proportional relationship? Select ALL that apply.
A. y=-3x + 4 C. y=x
B. x= 6y D. y=100x
C & D
400
How many cups of flour would be in 7 loaves of bread?
14
400
Given the equation y=-8x what is x when y=44?
x= -5.5
400
The point (5, 21) is on the graph of a proportional relationship. What other points are on the graph? Select ALL that apply.
A. (8, 33.6) C. (3, 12.6) E. (11, 46)
B. (4, 16.5) D. (0,0) F. (2, 8.4)
A, C, D, F
400
Dylan makes $336 for 32 hours of work, and Angela makes $420 for 42 hours of work. Who makes more money per hour AND by how much?
Dylan makes more money per hour by $0.50 per hour.
500
I ate a 1/2 pack of skittles and then I ate 10 packs of skittles per hour.
No, because I ate an additional 1/2 pack of skittles.
500
What x and y values are always present in every proportional table?
x = 0
y = 0
500
Name an ordered pair that would go through the line of y=1/2x
500
What does the ordered pair (8,40) represent in the situation?
For every 8 pounds of sugar there is 40 cups.
500
A movie theater has reduced movie ticket prices for the early afternoon show. A group of 4 students go to the show and pay $26. At this rate, how much would 30 students pay to see a movie?
$195