4MA0 Higher June 2016 Paper 4 Q7EdexcelHigherOld spec4 marksDrawing & Using Graphs 7(a) Complete the table of values for \(y = x^2 - 4x + 2\)\(x\)−1012345\(y\)2−2−1 (2)(b) On the grid, draw the graph of \(y = x^2 - 4x + 2\) for all values of \(x\) from −1 to 5 (2)Mark scheme (a)Mark scheme (b)Mark scheme (a)SchemeMarks7, (2), −1, (−2), (−1), 2, 7B2(2)NotesB2: B1 for at least 2 correctMark scheme (b)SchemeMarks(−1, 7), (0, 2), (1, −1), (2, −2), (3, −1), (4, 2), (5, 7)Answer: Correct curveB2(2)NotesB2: For the correct smooth curve through all 7 points (\(\pm\tfrac{1}{2}\) sq)B1 ft for at least 6 points from their table plotted correctly (\(\pm\tfrac{1}{2}\) sq) provided at least B1 scored in (a)
