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Edexcel 1MA1
Foundation and Higher
Non-calculator
A11 Roots and turning points
Question 1 · 3 marks
Spec and skills
Paper scope: Paper 1: non-calculator practice
Spec A11
Spec A12
Original practice question
Answer and supported method checks
The graph of
y
=
x
2
−
4
x
+
1
y = x^2 - 4x + 1
y
=
x
2
−
4
x
+
1
is drawn below.
−
1
0
1
2
3
4
5
−
4
−
2
2
4
6
x
y
(a)
Use the graph to estimate the smaller solution of
x
2
−
4
x
+
1
=
0
x^2 - 4x + 1 = 0
x
2
−
4
x
+
1
=
0
.
1 mark