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a function in which a unique element of the domain is associated with only one corresponding element in the range.
a number which combined with its inverse results in the identity 1, e.g. 4 × ¼ = 1.
all the elements in the universal set that are not part of the given set. The complement of A is...
points that lie on the same line (so that the gradient is the same at each point).
a coordinate pair of values where the first number gives the x-value and the second...