Hello
I am wondering how i establish where to draw this line?
Question
22
The grid opposite shows the graph of y = x2 + 3x – 2
(a) By drawing an appropriate straight line on the graph solve the equation
x
2 + 3x – 3 = 0
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Answer .................................................. ........................ (2 marks)
(b) By drawing an appropriate straight line on the graph solve the equation
x2 + 2x – 1 = 0
graph can be seen on page 22 here:
http://store.aqa.org.uk/qual/gcse/qp...W-QP-JUN05.PDF