Summary Flashcards

1
Q

The common difference

A

Arithmetic sequence

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2
Q

A n B

A
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3
Q

In Exponentials

A

C is not the y intercept, it is the asymptote

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4
Q

If a decimal has a pattern

A

It will be rational

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5
Q

Opposite faces

A

Have the same surface area

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6
Q

K =

A

Y coordinate

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7
Q

Asymptotes

A

Move up or down with what is added / subtracted, it never touches the graph. The denominator must be 0, it can’t be +0x

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8
Q

Degrees of freedom

A

(Row - 1)(Columns - 1)

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9
Q

Geometric sequence

A

Multiplication

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10
Q

For mean estimates in grouped frequency

A

Use the midpoint

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11
Q

The first significant figure

A

Must not be 0

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12
Q

To calculate the common ratio

A

One term / its previous term

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13
Q

(0, x)

A

Always y intercept when x = 0

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14
Q

Independent events

A

P A n B = P(A) x P(B)

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15
Q

Polynomial solver is for

A

Simultaneous equations

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16
Q

If two lines have the same gradient

A

They are parallel

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17
Q

No right angle, Matching pair

A

= Sin rule

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18
Q

If correlation is 1 or -1

A

It is “perfect” positive/negative correlation

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19
Q

Cumulative frequency

A

Always starts at 0

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20
Q

A’

A
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21
Q

V with line

A

Or but not both

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22
Q

H =

A

X coordinate

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23
Q

And =

A

X

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24
Q

I =

A

R x c x n

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25
Or =
+
26
Right angle
SOH CAH TOA or Pythag
27
Given probability in normal distribution
Use inverse
28
Closer to 1
Stronger correlation
29
Y - ax^n, m = ax^n-1
To find any gradient on a function
30
Calculator assumes
Normal distribution is on the left, take the number from one
31
If two lines are perpendicular
The gradient is the negative reciprocal
32
A’ n B’ = (A U B)’
33
Expected value
Column total x row total / overall total
34
μ ≠ 2σ =
95.4%
35
Arithmetic sequence
Difference
36
To find negative reciprocal
Flip the numerator and denominator, change the sign
37
A U B’
38
A’ U B
39
Pythagoras
A^2 + b^2 = c^2
40
μ ≠ σ =
68.3%
41
Profit =
Revenue - cost
42
If percentage is given in normal distribution
Type as a decimal for inverse
43
No right angle, Sandwich
= Cos rule
44
The common ratio
Geometric sequence
45
3 rules of finding the derivative
1. Ax^n – n x ax^n-1 2. Ax – a 3. A – disappear
46
A line of best fit
Must go through the mean
47
Tangent is horizontal
= 0
48
A’ n B
49
A n B’
50
Min/Max
Vertex, turning point
51
To find the common difference
Subtract from the number following Eg: subtract U2 from U3
52
End values for
Cumulative frequency graphs
53
Find the exponential
To find the asymptote
54
General form
Ax^2 + B + C
55
A’ U B’ = (A n B)’
56
μ ≠ 3σ =
99.7%
57
Not given probability in normal distribution
Normal
58
Empty and complete sets
Are always subsets
59
False fronting on implication
Makes whole statement true
60
Vertex form
y = A (x - h)^2 + k