Ratios
Write the ratio for the number of girls in 7th grade to the number of boys in 7th grade.
9:11
Write an equation for the point (2, 48).
A graph shows a proportional relationship if it does what two things?
Goes through the origin (0,0)
Is a straight line
56 x 2 =
112
The Pope lives in this country and is 20 on the map
Italy
What does k represent?
Constant of Proportionality
Average miles per gallon on Ms. Koeppen's car can be represented by the equation: m=24g
If Ms. Koeppen puts 11 gallons in her car how far can she go?
264 miles
Write an equation for the graph.
T=58d or y=58x
1,782 x 9 =
16,038
This country's capital is Madrid and is 5 on the map.
Spain
Do these ordered pairs represent a proportional relationship?
(2, 12)
(4, 24)
(7, 42)
Yes
Average miles per gallon on Ms. Koeppen's car can be represented by the equation: m=24g
If Ms. Koeppen drives 864 miles how many gallons will she have used?
36 gallons
What does the point (10,580) represent in the context of the graph?
A Jaguar can go 580 feet in 10 seconds
47 x 13 =
611
Ms. Koeppen's favorite treat is crepes which come from this country and it's 6 on the map.
France
Are these ratios equivalent?
63:72
441:504
Yes
Julia is shopping with her mother. They pay $1.50 per pound of tomatoes. Write an equation to represent the relationship.
C=1.5P or y=1.5x
What does the point (0,0) represent on the graph?
A jaguar can go 0 feet in 0 seconds
527 x 38 =
20,026
This country is the reason for k being used for the constant of proportionality and is 18 on the map.
Germany