Methods of calculation

Question 1

Calculate

125^(2/3)

Answer 1

5^3 ^2/3
5^6/3
5^2

Question 2

Calculate

100^-1

Answer 2

1/100

Question 3

Calculate 100^-1/2

Answer 3

1/root 100

1/10

Question 4

Calculate 100^-2

Answer 4

1/100^2

Question 5

What do hollow circles on a number line represent?

Answer 5

less than or greater than

Question 6

What do filled in circles on a number line represent?

Answer 6

less than or equal to and greater than or equal to

Question 7

Method to solve Simultaneous equations with one linear and one quadratic

Answer 7

Substitution

Question 8

Upper and lower quartile of

1,2,3,4,5,6,7

Answer 8

2 and 6

Question 9

Upper and lower quartile of

1,2,3,4,5,6

Answer 9

2 and 5

Question 10

Equations for a quadratic sequence

Answer 10

A+B+C=first term
3a+b=first difference
2a= second difference

Question 11

TP of F(X) is 9,10 when it remaps Y=X^2

What is F(X) in terms of X

Answer 11

F(x)= (X-9)^2 + 10

Question 12

What is the transformation due to the vector

Y= f(2-x)

Answer 12

Y=(-(x-2))
So

Add 2
Change sign on y axis (so change sign in X coordinate)

Question 13

How to draw frequency polygon using data set

Answer 13

Use middle value of data set as the X value

Question 14

How to draw cum freq diagram using data set

Answer 14

Take maximum value in data set as the X value