Day 5 - Direct Variation

Hotspot

Which of the following vertices would represent coordinates at (-4, 6)?

Hotspot

Which of the following vertices would represent coordinates at (0, 5)?

Hotspot

Which of the following vertices would represent coordinates at (-8, 0)?

Multiple Choice

3. If y varies directly as x, and y = 14 when x = 3, find y when x = 6.

• y= 28

• y= 7

• y= 18

• y= 84

Multiple Choice

4. If y varies directly as x, and y = 3 when x = 18, find y when x = 9.

• y= 225

• y= 75

• y= 27

• y= 1.5

Multiple Choice

5. If y varies directly as x, and y = 15 when x = 9, find y when x = 3.

• y= 12

• y= 5

• y= 27

• y= 45

Fill in the Blanks

6. If y varies directly as x, and y = 2 when x = 4, find y when x = 20.

   (Fill in the blank)

Fill in the Blanks

7. If y varies directly as x, and y = 3 when x = 7, find y when x = 14.

   (Fill in the blank)

Fill in the Blanks

8. If y varies directly as x, and y = ⁵/₂ when x = 15, find y when x = 3.

   (Fill in the blank)

Multiple Choice

13. Part A- Karen earns $28.50 for working 6 hours. If the amount m she earns varies with h the number of hours she works, which equation represents the proportional relationship?

• h= 4.75m

• m= 4.75h

• m= 171h

• m= 28.50h

Multiple Choice

13. Part B- Karen earns $28.50 for working 6 hours. If the amount m she earns varies with h the number of hours she works, how much will she earn for working 10 hours?

• $47.50 for working 10 hours

• $285.00 for working 10 hours

• $171.00 for working 10 hours

• $88.50 for working 10 hours

Multiple Choice

14. Part A- A bottle of 150 vitamins costs $5.25. If the cost c varies directly with the number of vitamins in the bottle, v, which equation represents the proportional relationship?

• c= 5.25v

• v= 0.035c

• c= 0.035v

• c= 28.57v

Multiple Choice

14. Part B- A bottle of 150 vitamins costs $5.25. If the cost c varies directly with the number of vitamins in the bottle, v, what should a bottle of 250 vitamins cost?

• $10.25 for 250 vitamins

• $8.75 for 250 vitamins

• $12.50 for 250 vitamins

• $8.25 for 250 vitamins

Multiple Choice

15. Part A- Morgan received $55.35 in interest on a $1230 in her bank account. If the interest (I) varies directly with the amount deposited (d), which equation represents the proportional relationship?

• I= 2.2%d

• I= 22.2%d

• d= 4.5%I

• I= 4.5%d

Fill in the Blanks

15. Part B- Morgan received $55.35 in interest on a $1230 in her bank account. If the interest (I) varies directly with the amount deposited (d), how much would Morgan have total for the same amount of time if she had $2000 in her account?

Fill in the Blanks

16. The number of gallons g of fuel used on a trip varies directly with the number of miles m traveled. If a trip of 270 miles required 12 gallons of fuel, how many gallons are required for a trip of 400 miles? Round answer to the nearest tenths place.

Fill in the Blanks

17. The time needed to paint a fence varies directly with the length of the fence. If it takes 5 hours to paint 200 feet of fence, how long, in hours, will it take to paint 500 feet of fence?.

Poll

Exit Ticket Answer Choices

• A

• B

• C

• D