Proportional Tables

Constant of Proportion

100

are the values proportional? 

x= {-4, -3, -2, -1}

y= {-5, -6, -7, -8} 

NO 

200

Are the values proportional? 

x={-70, -56, -14, -7}

y={-10, -8, -2, -1}

YES

300

Are the values Proportional? 

x={1,2,7,10}

y={10,20,70,100}

YES

400

Are the Values Proportional? 

x= {2,3,4,7}

y={4,6,12,21}

NO

Unit Rate

100

If Mimi drives 50 miles in 2 hours, what is her rate (speed per hour)?

What is 25 miles per hour

200

If James types 120 words per 3 minutes, what is his rate of typing?

What is 40 words per minute

300

If 10 bags of Hot Cheetos cost $3.50, then how much does 1 cost?

What is $0.35

400

Which is the better deal $20 for 5 t-shirts or $24 for 8 t-shirts

What is $24 for 8 t-shirts (rate of $3 per shirt)

Find the Missing Value (X)

100

x= {?, 16,20,36}

y={5, 20, 25, 45}

4

200

x={12, ?, 60,}

y= {26, 78, 130}

36

300

x= {7, 28, ?, 42}

y= {3, 12, 15, 18}

35

400

x= {2, 4, 8, ?}

Y= {15, 30, 60, 150}

20

Find the Missing Value (y)

100

x= {4, 8, 16, 40}

Y= {?, 22, 44, 16}

11

200

x= {20, 8, 4, 2}

Y= {150, ?, 30, 15}

60

300

X= {42, 35, 28, 7}

Y= {18, 15, ? , 3}

12

400

X= {48, 20, 16, 4}

Y= {60, 45, 25, ?}

5

Proportional or Not?

100

2/3 and 4/6

Yes, proportional, 2 x 6 = 12, 3 x 4 = 12

200

Are 1/6 and 2/7 proportional?

Not Proportional, 1 x 7 = 7 and 2 x 6 = 12

300

Are 6/8 and 9/12 proportional?

Yes proportional, 6 x 12 = 72, and 9 x 8 = 72

400

Are 5/10 and 4/8 proportional?

Yes proportional, 5 x 8 = 40, 10 x 4 = 40