1 markAxis of Symmetry and Max/Min Values (Quadratic Functions)

CSEC Mathematics · January 2012 · Paper 2 · Question 6(d)(i)

Without further calculations, write the equation of the axis of symmetry of the graph.

Write the equation of the axis of symmetry of the graph.

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6(a)Copy and complete the table.[2 marks]
6(b)Using a scale of 2 cm to represent 1 unit on the x-axis, and 1 cm to represent 1 unit on the y-axis, plot the points whose x and y values are recorded in your…[4 marks]
6(c)Using your graph, estimate the value of y when x = 3.5. Show on your graph how the value was obtained.[2 marks]
6(d)(ii)Estimate the minimum value of the function y.[1 mark]
6(d)(iii)State the values of the solutions of the equation: x² – 2x – 3 = 0.[1 mark]

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