1. a) Complete the table below for the equation y = x³ – 3x² – 9x + 2.

x	-3	-2	-1	0	1	2	3	4	5
y = x3 – 3x2 – 9x + 2				2			-25

(2 Marks)

b) On the grid provided draw the graph of y = x³ – 3x² – 9x + 2 for -3 < x < 5.

Use the scale: 1cm rep 1 unit on x – axis

1cm rep 5 units on y – axis (3 marks)

1. i) Use your graph to solve the equation

x³ – 3x² – 9x + 2 = 0 (2 marks)

ii) By drawing a suitable straight line on the graph solve the equation.

x³ – 3x² – 9x + 2 = -2x – 4 (3 marks)

Answer rating: 100% (QA)

Xx Y 3 2 3x 9x2 s Complete the table below equation y x ... View the full answer