Unit 2: Proportional Relationships Review

Proportional Graphs

Proportional Equations

Identifying Proportional Relationships

Vocab

Random Proportional Relationships

Ms. Allen Trivia

Scale Factor

100

The coordinate point for the origin.

What is (0,0)?

100

Is this equation proportional? y= 3x

If so what is the constant of proportionality?

Yes

k=3

100

When you are FINDING the Constant of Proportionality, do you divide ___ by ____

You divide " Y by X "

100

The number we multiply one quantity by to calculate the other quantity.

What is the Constant of Proportionality?

100

The first thing I can do if I am not sure how to start.

Make a table.

100

The name of Ms. Allen's new kitten that she is getting today or tomorrow!

What is Sherman?

100

What is the scale factor?

What is the scale factor is 2?

200

The coordinate point on any proportional graph that shows the Constant of Proportionality.

What is (1,k) or (1, CP)?

200

Is this equation proportional? Explain why or why not.

y= 4x + 10

Not proportional because the equation shows addition, the equation does not have a CP, and the equation does not show equivalent ratios.

200

Is this a graph of a proportional relationship? Explain why or why not.

No, because the graph does not start at the origin.

200

When one quantity is multiplied by a constant value to calculate a second quantity.

What is a proportional relationship?

200

It takes Bart 10 minutes to finish writing "I will not talk in school" 30 times. How long would it take him to "I will not talk in school" 90 times?.

It will take Bart 30 minutes.

200

The names of Ms. Allen's Kids

What is Matt or Siena?

200

What is the scale factor from A to B?

What is the scale factor is 2?

300

what are 3 ways to tell if a graph is proportional

(Need to get all 3 for full points)

if the line is straight and diagonal

goes through the origin

300

Is this equation proportional? Explain why or why not.

y=3/4x

proportional k=3/4

300

Does this table show a proportional relationship? Explain why or why not.

No, because there is not a constant rate.

300

All proportional relationships can be represented with this equation.

What is y=COPx?

300

The two quantities in the proportional relationship.

What is "Earth weight" and "Moon Weight"?

300

Where is one of the places Ms. Allen grew up?

What is Texas?

300

What is the length of the missing side?

What is 4 inches?

400

Is this graph proportional? Explain why or why not.

Yes the graph is proportional because for every 1 hour the total cost is $50.

400

Write an equation for this situation:

Elena jogged at a constant speed. She ran 3 laps in 5 minutes. Write an equation where d represents distance in laps and t represents time in minutes.

d = 0.6t or d = (3/5)t

t = 1.66d or t = (5/3)d

400

Is the table proportional? Explain why or why not.

Yes, it is proportional and the CP is 9.

400

The coordinate point on a graph that all proportional relationships must go through.

What is (0,0)?

400

Sarah is training for a 5K (3.1 miles) run. She decides to track her progress by recording the time it takes her to run different distances. After running 1 mile, she completes it in 8.5 minutes.

If her time is proportional to the distance she runs, how long would it take her to run the 5k at that constant pace?

26.35 minutes

400

How long has Ms. Allen been a teacher?

What is 28 years?

400

What is the length of the missing side?

What is 20 yds?

500

Is this graph proportional? Explain why or why not.

No because the graph does not start at the origin.

500

Write an equation for this situation AND answer the question.

If Ms. Schroeder needs 500 yards of yarn to crochet a blanket. Let x represent the number of blankets and y represent yards of yarn. How many yards would she need to crochet 5 blankets?

y = 500x

2500 yards of yarn

500

Dos this table show a proportional relationship? Explain why or why not.