For the quadratic polynomial P(x)=2x2−5x−3 answer the following.
(i) Determine the y-intercept of its graph.
(ii) Find all x-intercepts of the graph.
(iii) Draw a rough sketch of the parabola on the Cartesian plane, clearly showing the intercepts and the vertex (no scale needed).
(iv) Label the y-intercept obtained in part (i) on your sketch.