(a) Copy and complete the following table of values for \(y = 2x^{2} - 9x - 1\).



x
-1
0
1
2
3
4
5
6


y

-1
-8
-11



17


~(b) Using a scale of 2cm to represent 1 unit on the x- axis and 2cm to represent 5 units on the y- axis, draw the graph of \(y = 2x^{2} - 9x - 1\).
(c) Use your graph to find the : (i) roots of the equation \(2x^{2} - 9x = 4\), correct to one decimal place ; (ii) gradient of the curve \(y = 2x^{2} - 9x - 1\) at x = 3.



(a) Copy and complete the following table of values for \(y = 2x^{2} - 9x - 1\).



x
-1
0
1
2
3
4
5
6


y

-1
-8
-11



17
~(c) Use your graph to find the : (i) roots of the equation \(2x^{2} - 9x = 4\), correct to one decimal place ; (ii) gradient of the curve \(y = 2x^{2} - 9x - 1\) at x = 3.



(a) Copy and complete the following table of values for \(y = 2x^{2} - 9x - 1\).



x
-1
0
1
2
3
4
5
6


y

-1
-8
-11



17
