Rate that Unit Rate
You earn $24 for working 3 hours. What is your pay per hour?
$8 per hour
Where is the point (3,4)?
Quadrant 1
Is y=4x proportional or not proportional?
yes
Identify the dependent variable in this scenario:
y = kx
y
Total cost = $25 per ticket * number of tickets
Which value is constant? (stays the same)
$25 per ticket
You travel 150 miles in 3 hours. What is your speed per hour?
50 miles per hour
Where is the point (-5,-2)?
Quadrant 3
What year was the candy corn invented?
1888
You buy apples, and the total cost changes. What is the independent variable?
number of apples
Define slope
constant rate of change or Unit rate
Five movie tickets cost $60. What is the cost per ticket?
$12
Where is the point (7,-3)?
Quadrant 4
A store sells 2 notebooks for $6 and 4 notebooks for $12. Is the relationship proportional?
(Hint: Do they have the same unit rate?)
Yes - $3 each
The amount of money you earn depends on how many hours you work. What is the dependent variable?
money earned
Find the slope of these two coordinates
(1, 5) and (4, 20)
5
A car travels 210 miles using 7 gallons of gas.
How gallons are needed for 360 miles?
(Hint: how many miles can 1 gallon of gas get you?)
210 miles / 7 gallons = 30 miles per gallon
360 miles/30 miles per gallon = 12 gallons
Where is the point (-7,7)?
Quadrant 2
Turnips and Potatoes
The temperature outside changes throughout the day. You record the temperature every hour. What is the independent variable?
Time in hours
Find the slope
(2, 10) and (6, 30)
5
A 8lbs bag of dog food cost $28. How much would the 25lb bag of dog food cost?
$3.50 per lb x 25lb = $87.5
A point has a negative x-coordinate and a negative y-coordinate. Which quadrant is it in?
Quadrant 3
A table shows x: 1,2,3,4 and y: 7,14,21,28. Is the relationship proportional? Explain why.
x : 1 2 3 4
y : 7 14 21 28
Yes, increases by 7 everytime
What country did Halloween originally come from?
Ireland / Scotland
Find the slope
( 7, 49) and (9, 75)
13