Graphs
Tables
Unit Rates
100
From the following 2 points on a graph what is the constant of proportionality? (1, 3) and (2,6)
3
100
Amber work at an ice cream shop. Her wages and hours are shown below in the chart. What is the constant of proportionality?
Hours (x) Wages (y)
2 16
4 32
6 48
8
100
It costs $29.75 to buy 8.5 pounds of cherries. What is the unit price per pound?
$3.50
200
What is the constant of proportionality for the graph with the following points? (4,2) (6,3) (8, 4)
1/2
200
What is the constant of proportionality shown in the table?
(x) (y)
4 2
8 4
6 3
0.5 or 1/2
200
It costs $14.95 to buy a 5 pound bag of coffee. It costs $23.12 to buy a 8 pound bag of coffee? Which is the better buy?
8 pound bag of coffee
300
What is the following point on the graph called? (0,0)
Origin
300
What is the constant of proportionality shown in the table?
(x) (y)
5 4
6 4.8
8 6.4
0.8 or 4/5
300
Amy rides her bike 4 miles in 3/4 hours. How many miles can she ride in 1 hour?
5 1/4 miles
400
What are the two characteristics of a line on a graph that show the line is proportional?
1)Go through the origin
2) Be a straight line
400
Find the constant of proportionality
20
400
Amy can paint 1/2 a room is 1/4 of an hour. How much can she paint in 1 hour?
2 rooms
500
3
500
Jean has $280 in her savings account. Starting next week, she will deposit $30 in her account every week. Is the amount of money in her account proportional to the number of weeks?
No
500
John can run 3/4 of a mile in 1/3 of an hour. How far can he run in 1 hour?
2 1/4 miles