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To factorise an equation is to put it into (usually two) brackets in the form (x+a)(x+b), where a and b are integers, which multiply out to make the original equation. So whenever you see the word factori...

The domain is a set of all possible values for variables that are input in to a function.

The range of a funciton is a set of values that may be the output of a funciton. 

For one to one fun...

a limit is concerned with how a funciton behaves very close to a certain point.

it is written simply as limf(x) = A, x>a

this means as x approaches a, f(x) equals A

Notice that the square root of 8 can be simplified: 4 / (sqrt(4) * sqrt(2) + 4) = 4 / (2 * sqrt(2) + 4) Divide top and bottom of the fraction by two: 2 / (sqrt(2) + 2) Rationalise the denominator: (2 / (s...

Divide the cost of the event by the cost of the tickets to find how many tickets are required to break even 200/12 = 16.67

17 tickets would need to be sold to make any profit.