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 5/2c. Direct variation, constant of variation is 2/5d. Direct variation, constant of variation is 1 -2/52. -12x = 6y a. Not a direct variation b. Direct variation, constant of variation is 1/2 c. Direct variation, constant of variation is 2d. Direct variation, constant of variation is -23. .7x -1.4y = 0 a. Not a direct variation b. Direct variation, constant variation is 1/2c. Direct variation, constant variation is 2d. 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= -5xb. y= -1/5x c. y= 5xd. y= 1/5 x5. y= 7 1/2 when x=3a. y= 3/2xb. y= 2/3xc. y= 5/2d. y= 2/5 6. y=10.4 when x=4a. y= 3.4xb. y= 3.8xc. y= 3.2xd. y= 2.6xFor 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= 1.8xc. Direct variation, y= 4xd. Direct variation, y= 5/9x8. (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