Maths Lingo
Name of the line dividing an angle into two equal angles.
Angle Bisector
What is the mode of a dataset?
Most frequent data item
In terms of pi, what is the area of a circle of diameter 8 cm?
16 pi cm2
What base does the denary number system use?
Does enlargement preserve the shape of the object?
Yes
A symbol (e.g x) that can stand for any numerical value in an expression?
Variable
State the formula for the Interquartile Range.
IQR = Q3 - Q2 (Upper Quartile - Lower Quartile)
What is the name of the circle of radius 1, centered at (0,0), used to understand trigonometric functions.
Unit circle
What do we call numbers that cannot be represented as ratio of two integers?
Irrational Numbers
(Steal Question)
What is the distance between the stationary points of
[y = x2] and [y = (x-4)2-3]
5
What is a Vinculum?
A dash or line (usually in a fraction)
Find the range of the dataset:
[34, 57, 14, -9, 24, 11, 111, 11]
120
If a sector has arc length 3 cm and radius 4 cm, what is the angle, in radians, of the sector.
3/4 or 0.75
(Steal Points)
What standard Number set is represented by the symbol: ℤ .
Set of Integers
Describe a single transformation, other than reflection, that can map Point P(0,1) to Point Q(1,0)?
Rotation (around origin) by 90 degrees clockwise
(Switch Question)
What does a conjecture become once it has been proven to be true?
Theorem
(Double Points)
What is the mean of the first 10 postive integers?
5.5
(Shield)
What system of coordinates uses a point's distance (r) from the angle (θ) they make with the positive x-axis.
Polar Coordinates
What is i3, where i is the imaginary unit?
-i
Describe the translation that shifts this question to the 300 point question for Stats?
3 Left, 1 Up
"Changing the order of the numbers being added does not change the sum"
What is this property of additon called?
Commutative Property of Addition
If the standard deviation of [3, 5, 7, 9] is x, what is the standard deviation of [8, 6, 4, 2] in terms of x?
x
Find the radius, in cm, of the sector that has an angle 60 degrees and area 6pi cm2
6
Is the number '2' a real number, a complex number, both or neither?
Both
(Hint)
The curve y=x2 is moved 1 units up and 2 unit to the right. State the new equation of the curve in the form y= ax2+bx+c.
x2-4x+5