Per 1 Re-teach Lesson

4 Slides • 16 Questions

1

Per 1 Re-teach

Constant of Proportionality, Writing Equations, Using Graphs

2

Identifying the Constant of Proportionality

- Remember $k=\frac{y}{x}$
- y comes FIRST in the sentence and x comes SECOND
-Simplify if possible

3

Multiple Choice

Kim learned in her science class that every 2 minutes she spends in the shower, she uses 17 gallons of water. This rate is constant. Identify the constant of proportionality for the time in minutes to the number of gallons.

Which quantity represents your y value.

1

minutes

2

gallons

4

Multiple Choice

Kim learned in her science class that every 2 minutes she spends in the shower, she uses 17 gallons of water. This rate is constant. Identify the constant of proportionality for the time in minutes to the number of gallons.

What is the Constant of Proportionality?

1

$\frac{17}{2}$

2

$\frac{2}{17}$

5

Fill in the Blanks

Type answer...

6

Writing Equations

Rember
$y=kx$
Y comes first in sentence, k is CoP, x comes second in sentence
Find CoP first, then work on the equation

7

Multiple Choice

Which equation represents this relationship?

1

t = 0.05p

2

t = 0.06p

3

t = 0.96p

4

t = 1.6p

8

Multiple Choice

Which part of this problem is the y?

1

Blue beads

2

Red Beads

9

Multiple Choice

Which part of this problem is the x?

1

Blue Beads

2

Red Beads

10

Multiple Choice

What is the Constant of Proportionality?

1

$\frac{7}{3}$

2

37

3

$\frac{3}{7}$

4

73

11

Multiple Choice

What is the correct equation to represent this situation?

1

$r=\frac{3}{7}b$

2

$r=\frac{7}{3}b$

3

$b=\frac{3}{7}r$

4

$b=\frac{7}{3}r$

12

Fill in the Blanks

Type answer...

13

Fill in the Blanks

Type answer...

14

Fill in the Blanks

Type answer...

15

Multiple Choice

Mallory could read 10 pages in 20 minutes. Determine the Unit Rate for pages read per minute.

1

1/2 pages per minute

2

2 pages per minute

3

5 pages per minute

4

5 minutes per page

16

Open Ended

What is the relationship between the Constant of Proportionality and Unit Rate?

Type response here

17

Fill in the Blanks

Type answer...

18

Open Ended

What does the Constant of Proportionality mean in this situation?

Type response here

19

Multiple Choice

Which equation represents this graph?

1

$t=\frac{1}{4}g$

2

$t=4g$

3

$g=\frac{1}{4}t$

4

$g=4t$

20

Any Questions?

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Constant of Proportionality, Writing Equations, Using Graphs

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