What is the formula to find the COP?
y/x
How do you find scale factor?
New divided by old
Is this proportional?
x y
3 18
4 24
5 30
6 33
7 42
y= 9x + 2
What is the COP
9
By what factor is triangle 1 reduced to form triangle 2?
.5
The distance on a map between two cities is 2.5 inches. The map scale says that 1 inch = 5 miles. What is the actual distance between the two cities?
12.5 miles
What is the COP?
x y
5 15
7 21
9 27
11 33
3
Kenneth measured a hotel and made a scale drawing. The scale he used was 1 inch=4 feet. The actual length of a room in the hotel is 20 feet. How long is the room in the drawing?
5 in
Your friend says you need 2 bags of chocolate chips for every 4 batches of cookies. If you want to make 12 batches for your class party, how many bags of chocolate chips do you need?
4
A graph must be ________ and go through the point (__,___) to be proportional.
straight
0,0
If each inch on the scale drawing equals 4 ft, what are the actual dimensions of Alyssa's room?
14.4 ft by 6.8 ft
Parker 160 words in 4 minutes. How many words can Parker type in one hour?
2,400
x y
13 52
16 64
19 76
21 84
What is the equation that matches this table?
On a map 1/2 an inch = 2 miles. There are 2 inches between Jacob and Marcus's homes on the map. What is the actual distance between their homes?
8 miles
Lillian drives 45 miles on 2 1/2 gallons of gas. What is her unit rate?
18 miles per gallon