Mathematics · May / June 2022 · Paper 21 · Question 27
0580
As printed in the paper
The question as text
The line y x 1 = + intersects the graph of y x x 3 11 2 = - - at the points A and B. Find the coordinates of A and the coordinates of B. You must show all your working. A ( , ) B ( , ) [4]
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
(–2, –1) and (6, 7) [4]
B3 for x = – 2 and 6 OR 2 − − = +
M1 for x 3 x 11 x 1 or better
M1 for correct method to solve their quadratic e.g. ( )( ) + − x 2 x 6 If 0 scored,
SC1 for one correct pair of coordinates
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