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44 Cards in this Set
 Front
 Back
f(x) + 3 means? 
outside function do as told (go up) 

f(x+3) means? 
inside function don't do as told (opposite) 

plotting cubics? 
draw out table >equation separated down left column 

rules for surds: 
list square numbers same square root cancel out write all steps 

circumference of a circle? 
pie d 

area of a corlce 
pie x r squared 

volume of a prism? 
area of cross section x length 

quadratics with trial and improvement 
3 columns write too big or too small see which value it is closer to 

equation for probability 
p = number of ways / total number of outcomes 

what does mutually exclusive mean? 
can't happen at the same time 

what does independent events mean? 
does not affect other events 

distance time graphs 
speed = distance / time acceleration or deceleration are curved 

Quadratic graphs 
draw table where 2 lines cross find the possible for 2 values of x 

how to calculate mass? 
mass = density x vol 

percentage increase 
start with 100 add on percentage increase x by the decimal version 

percentage decrease 
start with 100% subtract percentage decrease x by decimal version 

compound interest equation 
balance x multiplier to the power of years 

simple interest method 
find percentage multiply by number of years and add on 

percentage change equation 
new = old x multiplier 

Similar shapes 
exact enlargement sides are in the same ratio 

similarities in area and vilume 
FIND THE SCALE FACTOR 

how to factorise quadratics 
+ > ?x x > ?  2 brackets 

What happens if there's a co efficient? 
find a target number by number in front of x & number factorise seperately 

Difference of two squares 
only if the equation is negative 

Solving quadratic equations by factorising 
see where they cross on the x axis swap the signs to equal 0 

Solving quadratics by completing the square 
half the number in front of x multiply our the share bracket look what u have and compare (go from worked out to original) 

To solve by completing the square 
1) complete the square first 2) factorise REMEMBER PLUS AND MINUS 

When do you use the quadratic formula? 
when a is greater than 1 do plus version and minus version 

When using sine and cosine rule... 
corners : capital letters sides : lower case 

How to solve trig equations: 
solve the sinx inverse sin draw symmetry of graph 

what does f(x+a) +b show? 
translation of y = f(x) by a / b x mean inside x movement value outside is outside y movement 

Simultaneous equations with quadratics 
 one linear and one quadratic >always rearrange linear equation >sub into quadratic as you don't have to square >rearrange to get zero >work out and sub back in to get y 

recognising graphs of equations 
quadratic is a curve cubic is like a zigzag reciprocal is 2 L shapes exponential cuts y at 1 

direct proportion 
find value of k using given values sub k into equation and answer the question 

how to do inverse proportion 
as one increased the other decreases y is inversely proportionate to k / x sub info into question 

Triangular based prism 
surface area: area of base + 4 x area of tri volume : 1/3 a(squared) x height 

Cone 
surface area : pie x r(squared) + pie x r x length volume: 1/3 pie x r(squared) x h 

Sphere 
surface area: 4 x pie x r(squared) volume: 4/3 pie x r(cubed) 

Cylinder 
surface area: 2 x pie x r(squared) + pie x d x h volume: pie x r(squared) x h 

How to find the arc length 
AB = angle /360 x 2pier 

How to work out the sector area 
AOB = angle/360 x pie r(squared) 

How to find the perimeter of a sector; 
arc length + 2 x radius 

how to find the area of a segment: 
area of segment  area of triangle 

how to find the are of a shaded area: 
big sector  small sector 