Graphs
Tables
Discount & Tax
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
What is the total of a pair of shoes that cost $43 that have a 15% discount
$36.55
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
How much money did Desi save on a basketball that costs $24.99 with an 8% discount?
$1.99 or $2.00
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
Mrs. Santos bought a new iPad for $950.13. Tax on the iPad is 11%. What is the cost with tax?
$1,054.50
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
Marilynn buys a shirt for $15.00 plus 4% tax and some pants for $18.90 plus 4% tax. What is the total after after tax?
$35.26
500
3
500
Write an equation to represent this situation if the cost is proportional to the number of pounds of ham.
y=4x
500
Jessica and Darla went to the store. They bought some cookies for $9.00 with a 32% discount and some chips that were $4.50 with a 16% discount. How much money did they save?
$3.60