Mathematics · May / June 2021 · Paper 41 · Question 10
0580
As printed in the paper
The question as text
The table shows some values of y x x 3 4 2 = + - for x 1 5 G G - . x -1 -0.5 0 1 2 3 4 4.5 5 y -2 6 6 -2
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
10(a)[3]
0.75 3 7 3 0.75 [3]
B2 for 4 or 3 correct
or B1 for 2 correct
10(b)[4]
correct curve [4]
B3FT for 8 or 9 correct plots B2FT for 6 or 7 correct plots B1FT for 4or 5 correct plots
10(c)[1]
Accept any integer ≥ 8 [1]
10(d)[4]
1 line y = 4 − x ruled 2 0.2 to 0.3 4.2 to 4.3 [8]
B3 B2 for [ 1 ] y = 4 − x identified 2 1 −
or B1 for ruled line with gradient 2
or B1 for ruled line through (0, 4) but not y = 4 B1
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