Solve the initial value problem as follows: (4x + 3y) dx + (3x + 8y) dy = 0, y(0) = -1 Then calculate the numerical value of the derivative of y (x) at the point where x is equal to 1.5. Round-off the number you have just calculated to FOUR significant figures and provide it below (18 points) (your numerical result must be written here) Also, you are required to answer one additional question as follows. Choose correct answer from the list below and mark it properly. 1) The implicit solution of the initial value problem is (2 points): 2x2 +3xy - 4y2 = -4 2x2 + 3xy + 4y2 =4 2x2 - 3xy + 4y2 = 4 x2 + xyty' = 1 None of the above. SPECIFY