Mathematics, 24.07.2019 13:40, joytheqt305

The value of y varies directly with x . what is k the constant of variation for this function, and what is y for the given value of x ?

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Mathematics, 16.07.2019 19:00, John7Gilbert

For questions 1-3 determine whether the equation represents a direct variation. if it does, find the constant of variation. 1. 2 y = 5x +1 a. not a direct variation b. direct variation, constant of variation is 5/2 c. direct variation, constant of variation is 2/5 d. direct variation, constant of variation is 1 -2/5 2. -12x = 6y a. not a direct variation b. direct variation, constant of variation is 1/2 c. direct variation, constant of variation is 2 d. direct variation, constant of variation is -2 3. 7x -1.4y = 0 a. not a direct variation b. direct variation, constant variation is 1/2 c. direct variation, constant variation is 2 d. direct variation, constant variation is -2 for questions 4-6 suppose y varies directly with x. write a direct variation equation that relates x and y. 4. y= -10 when x =2 a. y= -5x b. y= -1/5x c. y= 5x d. y= 1/5 x 5. y= 7 1/2 when x=3 a. y= 3/2x b. y= 2/3x c. y= 5/2 d. y= 2/5 6. y=10.4 when x=4 a. y= 3.4x b. y= 3.8x c. y= 3.2x d. y= 2.6x for questions 7 and 8 for the data in the table, tell whether y varies directly with x. if it does, write an equation for the direct variation. 7. (x.y) (3, 5.4) (7, 12.6) (12, 21.6) a. not a direct variation b. direct variation, y= 1.8x c. direct variation, y= 4x d. direct variation, y= 5/9x 8. (x,y) (-2,1) (3,6) (8,11) a. not a direction variation b. direct variation, y=x c. direct variation, y=2x d. direct variation, y= -2x

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Mathematics, 26.09.2019 22:30, dee024

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Mathematics, 20.10.2019 00:30, thickness7699

Me with thus quiz #1 which equation represents a direct linear variation? y=25x y = x2 y=1x y = x + 3 #2 which is the direct linear variation equation for the relationship? y varies directly with x and y = 10 when x = 2. y = x + 8 y=x−8 y = 2x + 6 y = 5x #3 if f(x) varies directly with x and f(x) = 50 when x = –10, then what is f(x) when x = 15? –150 –75 –30 –5 #4 the number of miles abigail’s boat travels, m, varies directly with the amount of time abigail spends boating, t. if she spends 2 h in her boat, she travels 19 mi. which direct linear variation equation models the information? m = 4.5t m = 21t m = 17t m = 9.5t #5 the total distance a balloon rises into the sky varies directly with the amount of time it is in the air. manny released his balloon, and after 5 s it had risen 40.5 yd. how far will the balloon have risen after 10 s? enter the answer in the box. yd. #6 the cost of buying apples varies directly with the number of apples purchased. if 8 lb of apples cost $17.20, how many pounds of apples can be purchases for $43? enter the answer in the box. lbs. #7 what is the constant of variation for the quadratic variation? 7y = 0.28x2 0.04 0.28 0.98 7 #8 which is the quadratic variation equation for the relationship? y varies directly with x2 and y = 36 when x = 3. y = 12x2 y=112x2 y=14x2 y = 4x2 #9 what is the constant of variation for the inverse variation? xy=13 16 13 3 6 #10 write the inverse variation equation for the relationship: y varies inversely with x and y = 4 when x = 2. y=12x y = x + 2 y = 2x y=8x

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