6. Determine whether y' + dy? =0 is separable, first-order linear, both, or neither. a. separable b. first order linear c. both d. neither 7. Which of the following would represent the tangent line segment through the point (-1, -1) on the direction field of the differential equation y' = zy? A. b. C. A d. t e. None of the above 8. Which of the following differential equations represents the direction field given below? a. "'= I b. y'= y c. y' = 1/y d. y' = -y e. y'= y f. y' = 1 - y 9. Which of the following differential equations represents the direction field given below? a. y'= I b. y' = y c. y' = 1/y d. y' = -y e. y'= y f. y' = 1 - y 5 10. Which of the following differential equations represents the direction field given below? a. V'= I b. y'= y c. y' = 1/y d. y' = -y e. y' = y f. y' = 1 -y