9 MATH TRIVIA

Algebra

100

How many terms are in this expression?

5x - 2xy - y - 7

4

200

Simplify by collecting like terms.

3a - 1 - 2a

3

300

Simplify the following:-6a² b x 2b

-12a²b²

400

Use the distributive law to expand the following:

-3y(2-3y)

-6y+9y²

500

Expand the following:

(5x-2)(3x-1)

15x²-5x-6x+2

Linear Relationships

100

How do you know if a graph is linear?

You know a graph is linear if the points form a straight line. 

200

For the rule y=3x-4, find the value of y when x=2

2

300

Calculate the y intercept for the linear relation y=2x+5

y=5

400

Find the coordinates of the x-intercept for the linear relation -5x-7y=15

The coordinates of the x-intercept is (-3,0)

500

Find the gradient of the line for the following pair of points A(-1,1) B(-3,-4)

Gradient = 2.5

Statistics

100

What does the "mode" mean in statistics?

The mode is the most common value.

200

How do you calculate the mean in a data set?

Mean = sum of all the values/ number of scores

300

Calculate the mean of this data set.

6,8,4,12,9,11,16,13 =79/8 = 9.875

400

Draw a stem and leaf plot of the following data set: 

12,8,11,22,10,21,12,6,11,22, 31,40

0|6,8
1|0 1 1 2 2
2| 1 2 2
3|1
4|0

500

This is an ordered data set which shows the number of fish Daniel caught in the 12 weekends that he went fishing during the year. 

1, 2, 3, 4, 4, 5, 6, 7, 7, 9, 11,13

Find the range, median, mode and mean

Range: 13-1 = 12 fish

Median = 5+6/2 = 5.5 fish

Mode = 4, 7 fish

Mean = 72/12 = 6 fish

SEHS

100

What are the three school values of our school?

Respect 

Responsibility 

Resilience 

200

What teachers are the head of Middle and Senior School?

Middle School - Mr Dorian

Senior School - Mr Peck

300

What days and times is Homework Club held at our school? Where is it held?

Wednesdays 3.05-4.00pm in the STEM centre

400

What Principal did we have before Ms Masters?

Mr Priolo 

500

What year was SEHS established?

1966

All about the teacher

100

What do students do in Mrs Rugari's class that she HATES?

Talking over her when she is teaching. 

200

What subjects and year levels does Mrs Rugari teach this year? *Hint - I teach 4 subjects including mentoring.

Year 9 Math

Year 8 Math

Year 8 Science

Year 8 Mentoring 

300

What is Mrs Rugari's MARRIED SURNAME?

Mrs Booth

400

How many siblings does Mrs Rugari have?

3 sisters

500

When is it Mrs Rugari's birthday? (Year not required)

16th of October