(a) Draw the table of values for the relation $y=x^2$ for the interval $-3\le x\le 4$.
(b) Using a scale of 2 cm to 1 unit on the x- axis and 2 cm to 2 units on the y- axis, draw the graphs of : (i) $y=x^2$ ; (ii) $y=2x+3$ for $-3\le x\le 4$.
(c) Use your graph to find : (i) the roots of the equation $x^2=2x+3$ ; (ii) the gradient of $y=x^2$ at x = -2.


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