Question 1
[2 marks]
Answer
[2 marks]
Factorise x2 โ y2
[1 mark]
Circle the limiting value of as n โ โ
1 3 4 7
[1 mark]
The equations of two straight lines are
y โ 3 x = 4 and 6 y = 18 x โ 5
Show that the lines are parallel.
[2 marks]
Points A (โ 12, 1) and B (12, โ 1) lie on a circle. AB is a diameter of the circle.
Work out the equation of the circle.
[3 marks]
The image of P is (โ 8, 7)
Work out the values of x and y.
[3 marks]
Solve by factorising 2x3 โ 9x2 โ 5x = 0
[3 marks]
ABCDEFGH is a cuboid.
Work out the length AG.
[3 marks]
A function f is given by
A sketch of y = f(x) is shown.
Work out the values of a and b.
[5 marks]
(3x โ 7) is a factor of 3x3 โ 4x2 โ 13x + 14
Work out the other two linear factors.
[3 marks]
(x โ 2) is a factor of ax4 โ 3ax3 + 5x โ 22
Work out the value of a.
[3 marks]
A garden patio is made from two rectangles. All lengths are in metres.
The area of the patio is less than 51m2
Work out the range of possible values of x. Give your answer in the form a x
b where a and b are both integers. You must show your working.
[4 marks]
Write 2x2 โ 16x + 7 in the form k(x + m)2 + n where k, m and n are integers.
[3 marks]
Matrix M represents a reflection in the line y = โ x
Write down matrix M
[1 mark]
A, B, C and D are points on a circle, centre O. angle OBC: angle ODC = 5: 3
Work out the size of angle OBC. You must show your working.
[4 marks]
The equation of a curve is y = x3 โ 3x2 + 5
Work out the stationary points of the curve and determine their nature. You must show your working.
[5 marks]
Here is the graph of y = โx2 + 3x + 6 for โ2 x
5
By drawing a suitable straight line, work out approximate solutions to
[4 marks]
The nth term of a quadratic sequence is an2 โ 5n + c where a and c are integers. The first four terms of the sequence are
2 x 16 y
Work out the values of x and y.
[5 marks]
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