General

Question 1

What does leave in exact from mean

Answer 1

Number that hasn’t been approximated
So a square root, fraction are in exact form

Question 2

when do we use + or minus

Answer 2

when we do a square root to get rid of a squared

Question 3

when two polynomial equations are equal to each other what do we compare

Answer 3

co-effecients, for example 2x^2+6x+5= ax^2+bx+c
a=2
b=6
c=5

Question 4

what does –> mean

Answer 4

it means that a subsequent statement that follows is reliant on the previous statement to be correct

p–>q means that if p is true then q is true

Question 5

what does <– mean

Answer 5

all the arrows are the same just whichever statement it points to is the one that is reliant on the other to be correct for itself to be correct

p<–q p is true if q is true

Question 6

what does <–> mean

Answer 6

means that the subsequent statement is equivalent to the previous one

p<–>q p is equivalent to q

Question 7

what is an irrational number

Answer 7

number that cannot be written as a fraction

Question 8

what is a rational number

Answer 8

number that can be written as a fraction

Question 9

what does it mean when says find the equation connecting x and y

Answer 9

play with it until
the equation is to equal y
or
the equation is to equal x

Question 10

when reaganing simultaneous equations with letters other than x and y
how do we know which acts as the x so is put first and which is the y so is put second

Answer 10

alphabetical

eg 2A+4B=17 not 4B +2A=17

Question 11

how to find the vector AB

Answer 11

where we are - where we started

vector B minus vector A