13(a) copy and complete the following table of values for
the relation y = 2x2 - 7x-3.
x -2 -11 0 1 2 3 4 5
y 19
-3 1-9
b) using 2cm to 1 unit on the x-axis and 2cm to 5units
on the y-axis, draw the graph of y = 2x2 - 7x- 3 for-2
< x5. (c) from your graph, find the: (i) minimum
value of y; (ii) gradient of the curve at x = 1. (d) by
drawing a suitable straight line, find the values of x for
which 2x2 - 7x - 5 = x + 4.