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- 1. Multiple ChoiceIn a direct variation, y=39 when x=3. Find the value of y when x=2.26358.52
- 2. Multiple Choicey varies directly with x, and y is 16 when x is 32. Which equation represents this situation?y=32xy=16xy=2xy=(1/2)x
- 3. Multiple ChoiceTrina's paycheck earnings varies directly as the number of hours she works. If she works 19 hours and earns $187.15, what should she earn if she worked 40 hours?$394$440$472.80$512.20
- 4. Multiple Choice
Is this a direct variation?yesno - 5. Multiple ChoiceIs this a direct variation?yesno
- 6. Multiple ChoiceWhich graph shows a proportional relationship between x and y?ABCD
- 7. Multiple ChoiceWhat ordered pair does a direct variation always go through when graphed?(0, 0)(1, 0)(0, 1)(1, 1)
- 8. Multiple ChoiceWhich graph shows a proportional relationship between x and y?ABCD
- 9. Multiple ChoiceWhat is another name for k?y- interceptxslopex- intercept
- 10. Multiple ChoiceY varies directly with x, and y is 84 when x is 16. Which equation represents this situation?y=1344xy=100xy=5.25xy=4/21x
- 11. Multiple ChoiceIf y = 15 when x = 12 find y when x = 32.y = (5/4)x; 40y= (4/5)x; -40y= 4x; 5y= 5x; -5
- 12. Multiple ChoiceIf y =4 when x = -4, find y when x =7.y= x, 7y= -x; 7y = -x; -7y= x; -7
- 13. Multiple ChoiceWhat does the Direct Variation Equation look like?Y= kxy = mx + by = by = x
- 14. Multiple ChoiceEduardo counted ten seconds between seeing lightning and hearing thunder, and he knew that the lightning was about 2 miles away. What is the equation of variation?y = 10xy = 2xy = 5xy = 1/5x
- 15. Multiple ChoiceA dishwasher uses 65 gallons of water to wash 5 loads of dishes. What is the constant of variation?k = 13k = 65k = 5k = 1/13
- 16. Multiple ChoiceIf y vaires directly with x and y= 12 when x= 15. What is the value of x when y= 16?12.82011.2519
- 17. Multiple Choiceif y is directly proportional to x, y is 10 when x is 3. What is the value of y when x is 5?16 2/31.5612
- 18. Multiple ChoiceIs this proportional?
y=2xyesno - 19. Multiple ChoiceWhich of the given graphs is a direct variation?ABCD
- 20. Multiple ChoiceA map of Texas is scaled so that 3 inches represents 90 miles. How far apart are Pecos and Fort Stockton if they are 1.8 inches apart on the map?54 miles15 miles30 miles50 miles
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