Mathematics · Oct / Nov 2025 · Paper 21 · Question 23
0580
As printed in the paper
The question as text
Find the coordinates of the turning point on the graph of y x x 7 2 2 ¢ Ä Ä . ( , ) [4]
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(–1, 8) [4]
B3 for x = –1 OR
M1 for –2 – 2x
M1 for their derivative = 0 OR
M2 for [x =] ( ) −− 2 or better ( ) − 2 1 −b
or B1 for 2 a OR
M2 for – ((x + 1)2 – 8) [= 0] oe
or M1 for [±](x + 1)2 + k
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