CAMBRIDGE COLLEGE LIMA IGCSE MATHS IVF 2014 Term 2 Extended Exam Sets 4.1 & 4.2 Thursday 10th July Friday 11th July Functions o Evaluate functions such as f(3) = 3x - 5 o Find the inverse of a function f-1(x) o Evaluate composite functions such as gf(x) Angle Properties o Calculate unknown angles using the following geometrical properties: Angles at a point; Angles at a point on a straight line and intersecting straight lines; Angles formed within parallel lines; Angle properties of triangle and quadrilaterals; Angle properties of regular polygons; Angle in a semi-circle; Angle between tangent and radius of a circle; Angle properties of irregular polygons; Angle at the centre of a circle is twice the angle at the circumference; Angles in the same segment are equal; Angles in opposite segments are supplementary, cyclic quadrilaterals. Vectors in two dimensions o Describe a translation by using a vector represented by: A directed line segment denoted by AB or a A column vector x y o Add and subtract vectors. o Multiply a vector by a scalar. o Calculate the magnitude of a vector. o Use the sum and difference of two vectors to express given vectors by two coplanar vectors. o Use position vectors. Transformations o Reflect simple plane figures in horizontal or vertical lines o Rotate simple plane figures through multiples of 900: About the origin; About the vertices; About the mid-points of edges of the figure o Translate simple plane figures using a given column vector; o o o o Important: Enlarge simple plane figures given the centre of enlargement and the scale factor. Reflect simple plane figures in a line defined by its equation. Stretch and shear simple plane figures given the shear/scale factor and the invariant line. Recognise and fully describe the above mentioned transformations. Please take with you a pen and sharpened pencils, a ruler and a calculator. None of these items will be provided in the exam room.