Ratios
It's $5 per cookie. Write a ratio of DOLLARS : COOKIES
Which variable in y=kx represents the constant of proportionality?
k
What are the two traits of a proportional graph?
goes through the origin, linear
Daniel's bank account balance is -$5. Then, he makes $60. What's his balance now?
$55
What school does your TF go to?
UW, SJSU, or UC Davis
If the ratio of cups of flour to cakes is 3:2, How many cups of flour do I use in 3 cakes?
4.5 cups
Jose is driving 12.25 miles per hour. Whats the constant of proportionality?
12.25
Which of the following has the steeper graph?
y = 5x
y = 1/5x
y=5x
15/18, or 5/6
What country is Mindy's family from?
Vietnam
Here is a ratio: 3.6:3. Give me an equivalent UNIT RATIO
1.2:1
y=3x. Fill in the blank to find an equivalent equation to represent the SAME proportional relationship.
x=___y
1/3
WHen graphing, what variable is horizontal?
x
A submarine is 1,200 feet below sea level. It dives down 200 feet and then rises 125 feet. Finally, the sub dives down another 10 feet. Assume sea level is at an elevation of 0 feet.
-1285 feet
What is California's state flower?
Golden poppy
Which two ratios are equivalent?
2:5, 10:20, 18:45
2:5 and 18:45
the cost of books is given by c = 4.25b, where c is the cost and b is the books. How much would 4 books cost?
$17
When graphing, what variable is vertical?
y
Leah is creating satin bows for a wedding. From a 15-meter-long ribbon, she first cuts a piece 3 4/9 meters long. Then she cuts a piece 6 5/9 meters long from the remaining ribbon. How much ribbon does Leah have left?
5 meters
How many more years will it take for Mindy to turn 31?
12 years
Juan biked 35 miles in 10 hours. Fill in the ratio.
___ miles : 2 hours
What happens to the constant of proportionality if you swap your input and output?
take the reciprocal
What is the origin?
Where the x and y axis intersect.
The height of each story of an office building is 9 1/2 feet. The height is measured from the ceiling to the floor. The building has three underground levels for parking. A car is parked two levels below ground. At what elevation are the car’s tires relative to the ground level?
-19 feet
What was the first animal to go to space?
a dog