mode

mode-the most value that shows up

mean

mean-add up all values divide how many values are there

reflection

mirror image

Rotation

rotation-turn about a fixed point

Translation

translation-slide along a straight line

Question

A group of students are talking 2 friends leave the group write an expression for the number of the students in the group after the 2 leave.

Answer - g-2

Numerical coefficient

Numerical Coefficient - A number that multiplies the variable
eg 2+2

Value

Value - A known or calculated amount.

Expression

Expression - Any single number or variable, or combination of operations [plus, minus, multiply, divide]
eg 5, n, 8+, x+1, 2y-7

Variable

Variable- A letter that represents an unknown number.

Common Factor

Common Factor- a number that 2 or more numbers are divisible by

eg. 4 is common factor of 8 and 12

G C F

G- Greatest C- Common F- Factor means the number with the greatest value that 2 or more numbers are divisible by.

Divisibility Rule

All whole numbers are divisible by one

divistblty rule

If the number is divisible by 2 and 3

It is divisible by 6

divistblty rule

All numbers that are divisible by 2 twice are 4