This is in Differential Calculus. This is only multiple choice. Provide necessary solution for each items. Thank you and Godbless. Follow the numbering.

4. At what point on the curve x = /" -2/+2, y= 3/" + 6/ +5, does the tangent line to the curve has a slope of A) (-9, 15) C) (2,9) B) (-15,6) D) (17, 14) 5. Given x =/ +1, y=3/ -2, find the slope of the tangent line to the curve at / = 3. A) C) B) D) W- 6. Given x =2sing, y= 1+ cost, find the slope of the tangent line to the curve at /= A) C) 2 NI- WI- B) -1 D)