PLEASE SOLVE WITHOUT CALCULATOR

Week 9 Homework A curve C is dene by the parametric equations as = :2 and y : re' . a. Find the coordinates where curve C intersects the x and y axes (1 mark] h. Find jy and hence find the points on C where tangent is horizontal or I vertical (4 marks] . d 2 y . . c Find 0' 2 and hence determine where the curve Is concave upward or x downward (3 marks] d. Sketch the curve C (2 marks] [Hint: tge'km