a. Copy and complete the tables of values of y = \(2x^2 - x - 4\) for -3 ≤ x ≤ 3

x	-3	-2	-1	0	1	2	3
y	17			-4

 

b. Using a scale of 2 cm to 1 unit on the x-axis and 2 cm to 2 unit on the y-axis, draw the graph of y = \(2x^2 - x - 4\) for -3 ≤ x ≤ 3.

ci. Use the graph to find: the roots of the equation  \(2x^2 - x - 4\)

ii. Use the graph to find the: values of x for which y increases as x increases;

iii. Use the graph to find the: minimum point of y.