# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2010 | Oct-Nov | (P1-9709/13) | Q#4

Question i. Sketch the curve for . ii. By adding a suitable straight line to your sketch, determine the number of real roots of the equation State the equation of the straight line. Solution i. We are required to sketch for ; We can sketch the graph of for as follows. We can find the points of the graph as follows. ii. […]