Maths
Functions
Algebra
General Knowledge
Straight Line Graphs
100
999x1001
（1000－1）x（1000＋1） ＝999999
100
If f(x) = 2x - 3, find f(-1)
-5
100
Simplify: 3x - 5 + 2x - 4
5x - 9
100
What does OFS stand for?
Overseas Family School
100
What is the name of the horizontal axis?
x axis
200
What type of matrix can we never find the inverse of?
One where the determinant is zero
200
If f(x) = 5 - 3x, find x if f(x) = 32
x = -3
200
Expand: (2x - 1) (2x + 1)
4x^2 - 1
200
Who won the Champions League Final this year?
Barcelona
200
What is the gradient of the line joining (0, -2) to (6, 4)?
m = 1
300
Find: ( 2 -5 ) + ( -4 6 ) -3 1 -2 7
( -2 1 ) -5 8
300
What is the inverse function of f(x) = 2x - 1
Inverse function = (x + 1) / 2
300
Factorise: 25x^2 - 1
(5x - 1) (5x + 1)
300
Which prince just married and who did he marry?
Prince William married Kate Middleton
300
What is the gradient of a line parallel to this line? y = -3x + 7
m = -3
400
What is the determinant of this matrix? ( 5 -1 ) -3 0
-3
400
If f(x) = 2x - 2 and g(x) = x^2, find gf(x)
gf(x) = (2x - 2)^2
400
Factorise: x^2 - 4x + 4
(x - 2) (x - 2)
400
What is a commonly used acronym that is longer to say than what it stands for?
www (world wide web)
400
What is the equation of a line perpendicular to this line? y = 2x - 6
m = -1/2
500
What is the inverse of this matrix? ( 5 -1 ) -2 0
- 1/2 ( 0 1 ) 2 5
500
If f(x) = x^2 - 3x, and g(x) = 2x + 1, find fg(-2)
15
500
Factorise: x^2 - x - 6
(x - 3) (x + 2)
500
Who is the current president of Singapore?
Sellapan Ramanathan (S.R Nathan)
500
What is the equation of a line parallel to this line and passing through the origin? 2x - y = 6
y = 2x
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