unit rate
proportional tables
Proportional graphs
Proportional equations
Constant of proportionality
100
It is $39.96 for 4 pizzas. How much is it for 1 pizza?
It cost $9.99 for 1 pizza
100
Yes since there exists a constant such that y/x = k
100
Is the graph proportional? Explain.
Yes, it has a straight line that starts at the origin.
100
Write an equation for the proportional table.
c/t = 65
100
What is the constant of proportionality (unit rate)?
Stacey hikes 12 miles in 3 hours and 20 miles in 5 hours.
4 miles per hour
200
Sally can jump 36 times in ½ minute. How much can she jump in 1 minute?
Sally can jump 72 times in 1 minute.
200
No, there is no constant
200
Is the graph proportional?
No, it does not start at the origin.
200
What does the point(18,3) mean in the context of the problem?
If the weight of an object is 18 pounds on earth, it would weigh 3 pounds on the moon.
200
Use the equation to find the value of y
when x = 8
y/x = 3.5
y = 28
300
You need 1/2 cup of sugar for 2/3 of a serving. How much sugar is needed for 1 serving?
You need 3/4 cup of sugar for 1 serving
300
Is the table proportional? Explain.
No, they do not have the same unit rate.
300
What is the unit rate for the following proportional graph?
$20 per ticket
300
Write an equation to represent the proportional graph.
y/x = 2
300
Calculate the miles for 15 minutes?
1,125 miles
400
John bought 5 books for $42.50. How much is 1 book?
It cost $8.50 for 1 book.
400
Is the table proportional? Explain.
Yes, it has the same unit rate of $2.65.
400
Write an equation to represent the proportional relationship.
y = 2x
400
Write an equation for the proportional table?
c/p = 1.5
400
How many feet for 10 seconds?
50 feet