25-26 Unit 2 Reteach: Constant of Proportionality - Alexandra Jones | Library

Instructions

This reteach must be completed with 100% accuracy BEFORE taking the retake.

1

The formula to find K (the constant of proportionality) is _______ divided by _______ 

1

What is the constant of proportionality from the table? (just type in the number)

1

There was only one answer, and it was...

1

Now you try! The table below shows different possibilities for the number of pizzas ordered to the number of people at a party. Which of the following ratios below of pizzas to people could also be included in the table? Select three!

1

The first number in an ordered pair is __________, the second number in an ordered pair is __________

1

The unit rate is ____________________ per __________

1

What is the formula to find the constant of proportionality? 

k=__________ divided by __________

1

Now you try! Use the graph below to answer the following questions:

What is the constant of proportionality_______ (just type in the number)
The point (1, 1.5) on the graph represents _______ (second or feet) per _______ (second or feet) 

1

What is the unit rate for the Humpback whale? (just type in the number)_______ 

What is the unit rate for the Gray whale? (just type in the number)_______ 

1

Just to recap!

The humpback whale travels __________ __________ per __________

The gray whale travels ____________________ per __________

1

How far did the humpback whale travel in 30 days? (just type in the number)_______ 

How far did the gray whale travel in 30 days? (just type in the number)_______ 

1

Which whale traveled further?

1

Now you try! Horse fanatics tracked the speed of their top performing horses.
The Stallion travels 415 miles in 5 hours
The Gelding travels 258 miles in 3 hours.
If both horses travel at their own rate, which horse will have traveled further in 30 hours? _______ (Stallion or Gelding)

By how much more will it have traveled in 30 hours compared to the slower horse?_______  (just type in the number)

1

What is Albert's constant of proportionality? (k) just type in the number_______ 

What is Tanisha's constant of proportionality? (k) just type in the number _______ 

1

Now you try! Mina (M) and Avery (A) are trying to measure how much water they use at home. The amount of water they use is in the graph below. How much more water does Mina use than Avery in gallons per minute (gpm)? (just type in the number)

1

The first thing that makes a graph proportional is that the graph must be a _______ line!

1

The graph must pass through the _______ (0,0).

1

Now you try! Select four proportional relationships from the displays below:

1

The formula for writing an equation is __________=____________________

1

What is the k-constant of proportionality? (just type the number)

1

Now let's plug in all the pieces into the formula of y=kx.
__________=____________________

1

Now you try! The graph below shows the water used in gallons, g, that Avery used in, m, minutes. Write an equation that can be used to calculate, g, the gallons used by Avery in, m, minutes?

1

In this situation, x is __________ and y is __________.

1

What operation do you need to get from 1/4 hour to 1 hour?

1

What is the constant of proportionality? (just type in the number)

1

Now you try! Use the following information and table below to answer the following question: Kennedi is training for a bike race. At what rate, in miles per hour, is Kennedi biking? (just type in the number)

1

What is the equation that can be used to determine the total savings (s) per week (w)?
__________=____________________

1

In the equation s=3w, the '3w' represents __________ __________per __________

1

Now you try! The table below shows the relationship between the time in hours (h) Kennedi bikes and the distance she travels in miles (m).

Part A: Write an equation that can be used to determine the total distance (m), per hour (h)._______ 

Part B: What is the distance Kennedi biked in 12 hours?_______ (just type in the number)