Not Given

Question 1

Equation of a Straight Line

Answer 1

y-y₁ = m(x-x₁)

Question 2

Line Length

Answer 2

√(x₂-x₁)²+(y₂-y₁)²

Question 3

Midpoint from 2 Coords

Answer 3

(x₁+x₂)/2, (y₁+y₂)/2

Question 4

Circle Equation

Answer 4

(x-a)²+(y-b)² = r²

Question 5

Magnitude of a vector

Answer 5

|a| = √x²+y²

Question 6

cot^2 x =

Answer 6

cosec^2 x -1

Question 7

tan^2 x =

Answer 7

sec^2 x - 1

Question 8

cos2θ =

Answer 8

cos²θ-sin²θ
2cos²θ-1
1-2sin²θ

Question 9

sin2θ =

Answer 9

2sinθcosθ

Question 10

1 + tan2θ =

Answer 10

sec2θ

Question 11

cot2θ + 1 =

Answer 11

cosec2θ

Question 12

Arc length (radians)

Answer 12

length=rθ

Question 13

Area of a circle sector (radians)

Answer 13

a=1/2 x r²θ

Question 14

∫ eˣ dx =

Answer 14

eˣ + c

Question 15

∫ 1/x dx =

Answer 15

ln(x) + c

Question 16

P(B|A) =

Answer 16

P(B n A) / P(A)

Question 17

P(A n B) =

Answer 17

P(A) x P(B|A)

Question 18

y=f(x) + a

Answer 18

translation (0, a)

Question 19

y=f(x) - a

Answer 19

translation (0, -a)

Question 20

y=f(x - a)

Answer 20

translation (a, 0)

Question 21

y=f(x + a)

Answer 21

translation (-a, 0)

Question 22

y= -f(x)

Answer 22

reflection in x axis

Question 23

y=f(-x)

Answer 23

reflection in y axis

Question 24

y= af(x)

Answer 24

stretch sf a - y axis

Question 25

y=f(ax)

Answer 25

stretch sf 1/a - x axis

Question 26

(Independant) P(B|A) =

Answer 26

P(B)

Question 27

(Independant) P(A|B) =

Answer 27

P(A)

Question 28

(Independant) P(A n B) =

Answer 28

P(A) x P(B)

Question 29

(Non-Mutual) P(A u B)

Answer 29

P(A) + P(B) - P(A n B)

Question 30

(Mutual) P(A u B)

Answer 30

P(A) + P(B)

Question 31

Population

Answer 31

Whole set of items that we’re interested in

Question 32

Census

Answer 32

A collection of every data point in the population

Question 33

Sample

Answer 33

A subset of the population intended to represent it

Question 34

Parameter

Answer 34

A number that describes the entire population

Question 35

Statistic

Answer 35

A number taken from a single sample

Question 36

Sampling Frame

Answer 36

A list of people/items forming a population from which a sample has been taken